Home / 689,302,082-951,106,776.40-410,869,513.28

Finding the Fourth Proportional to 689,302,082, 951,106,776.40 and 410,869,513.28

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Solution

The fourth proportional to 689,302,082, 951,106,776.40 and 410,869,513.28 is: 566,922,382.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,302,082 : 951,106,776.40 = 410,869,513.28 : x
  2. Step 2: Convert to fraction form
    689,302,082/951,106,776.40 = 410,869,513.28/x
  3. Step 3: Cross multiply
    689,302,082x = 951,106,776.40 × 410,869,513.28
  4. Step 4: Simplify right side
    689,302,082x = 390,780,778,296,777,728
  5. Step 5: Solve for x
    x = 390,780,778,296,777,728/689,302,082
  6. Step 6: Final answer
    x = 566,922,382.08

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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.