Home / 15,574,265,642.57-21,492,206,426.76-8,799,938,775.21

Finding the Fourth Proportional to 15,574,265,642.57, 21,492,206,426.76 and 8,799,938,775.21

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Solution

The fourth proportional to 15,574,265,642.57, 21,492,206,426.76 and 8,799,938,775.21 is: 12,143,757,210.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,574,265,642.57 : 21,492,206,426.76 = 8,799,938,775.21 : x
  2. Step 2: Convert to fraction form
    15,574,265,642.57/21,492,206,426.76 = 8,799,938,775.21/x
  3. Step 3: Cross multiply
    15,574,265,642.57x = 21,492,206,426.76 × 8,799,938,775.21
  4. Step 4: Simplify right side
    15,574,265,642.57x = 189,130,100,699,582,758,912
  5. Step 5: Solve for x
    x = 189,130,100,699,582,758,912/15,574,265,642.57
  6. Step 6: Final answer
    x = 12,143,757,210.78

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Double scale
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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.