Home / 558,813,888.76-771,128,419.89-307,904,239.43

Finding the Fourth Proportional to 558,813,888.76, 771,128,419.89 and 307,904,239.43

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Solution

The fourth proportional to 558,813,888.76, 771,128,419.89 and 307,904,239.43 is: 424,888,705.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,813,888.76 : 771,128,419.89 = 307,904,239.43 : x
  2. Step 2: Convert to fraction form
    558,813,888.76/771,128,419.89 = 307,904,239.43/x
  3. Step 3: Cross multiply
    558,813,888.76x = 771,128,419.89 × 307,904,239.43
  4. Step 4: Simplify right side
    558,813,888.76x = 237,433,709,629,267,296
  5. Step 5: Solve for x
    x = 237,433,709,629,267,296/558,813,888.76
  6. Step 6: Final answer
    x = 424,888,705.17

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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.