Home / 485,411,484.47-728,037,510.50-208,988,279.37

Finding the Fourth Proportional to 485,411,484.47, 728,037,510.50 and 208,988,279.37

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Solution

The fourth proportional to 485,411,484.47, 728,037,510.50 and 208,988,279.37 is: 313,448,098.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,411,484.47 : 728,037,510.50 = 208,988,279.37 : x
  2. Step 2: Convert to fraction form
    485,411,484.47/728,037,510.50 = 208,988,279.37/x
  3. Step 3: Cross multiply
    485,411,484.47x = 728,037,510.50 × 208,988,279.37
  4. Step 4: Simplify right side
    485,411,484.47x = 152,151,306,635,168,384
  5. Step 5: Solve for x
    x = 152,151,306,635,168,384/485,411,484.47
  6. Step 6: Final answer
    x = 313,448,098.17

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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.