Home / 558,813,889.76-771,128,421.27-307,904,240.43

Finding the Fourth Proportional to 558,813,889.76, 771,128,421.27 and 307,904,240.43

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Solution

The fourth proportional to 558,813,889.76, 771,128,421.27 and 307,904,240.43 is: 424,888,706.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,813,889.76 : 771,128,421.27 = 307,904,240.43 : x
  2. Step 2: Convert to fraction form
    558,813,889.76/771,128,421.27 = 307,904,240.43/x
  3. Step 3: Cross multiply
    558,813,889.76x = 771,128,421.27 × 307,904,240.43
  4. Step 4: Simplify right side
    558,813,889.76x = 237,433,710,825,124,416
  5. Step 5: Solve for x
    x = 237,433,710,825,124,416/558,813,889.76
  6. Step 6: Final answer
    x = 424,888,706.56

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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.