Home / 30,728,513,389.64-42,381,869,560.47-26,448,894,082.68

Finding the Fourth Proportional to 30,728,513,389.64, 42,381,869,560.47 and 26,448,894,082.68

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Solution

The fourth proportional to 30,728,513,389.64, 42,381,869,560.47 and 26,448,894,082.68 is: 36,479,264,870.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,728,513,389.64 : 42,381,869,560.47 = 26,448,894,082.68 : x
  2. Step 2: Convert to fraction form
    30,728,513,389.64/42,381,869,560.47 = 26,448,894,082.68/x
  3. Step 3: Cross multiply
    30,728,513,389.64x = 42,381,869,560.47 × 26,448,894,082.68
  4. Step 4: Simplify right side
    30,728,513,389.64x = 1,120,953,579,030,661,038,080
  5. Step 5: Solve for x
    x = 1,120,953,579,030,661,038,080/30,728,513,389.64
  6. Step 6: Final answer
    x = 36,479,264,870.94

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Double scale
Find fourth proportional to 30,728,513,390.64, 42,381,869,561.85 and 26,448,894,083.68
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.