Home / 207,731,253.68-311,625,229-86,534,362.16

Finding the Fourth Proportional to 207,731,253.68, 311,625,229 and 86,534,362.16

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Solution

The fourth proportional to 207,731,253.68, 311,625,229 and 86,534,362.16 is: 129,813,352.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,731,253.68 : 311,625,229 = 86,534,362.16 : x
  2. Step 2: Convert to fraction form
    207,731,253.68/311,625,229 = 86,534,362.16/x
  3. Step 3: Cross multiply
    207,731,253.68x = 311,625,229 × 86,534,362.16
  4. Step 4: Simplify right side
    207,731,253.68x = 26,966,290,424,478,932
  5. Step 5: Solve for x
    x = 26,966,290,424,478,932/207,731,253.68
  6. Step 6: Final answer
    x = 129,813,352.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.