Home / 718,741,114.50-991,862,737.29-388,716,253.14

Finding the Fourth Proportional to 718,741,114.50, 991,862,737.29 and 388,716,253.14

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Solution

The fourth proportional to 718,741,114.50, 991,862,737.29 and 388,716,253.14 is: 536,428,428.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,741,114.50 : 991,862,737.29 = 388,716,253.14 : x
  2. Step 2: Convert to fraction form
    718,741,114.50/991,862,737.29 = 388,716,253.14/x
  3. Step 3: Cross multiply
    718,741,114.50x = 991,862,737.29 × 388,716,253.14
  4. Step 4: Simplify right side
    718,741,114.50x = 385,553,166,868,552,960
  5. Step 5: Solve for x
    x = 385,553,166,868,552,960/718,741,114.50
  6. Step 6: Final answer
    x = 536,428,428.94

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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.