Home / 266,635,628.28-399,966,826.86-84,896,978.04

Finding the Fourth Proportional to 266,635,628.28, 399,966,826.86 and 84,896,978.04

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Solution

The fourth proportional to 266,635,628.28, 399,966,826.86 and 84,896,978.04 is: 127,349,728.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,635,628.28 : 399,966,826.86 = 84,896,978.04 : x
  2. Step 2: Convert to fraction form
    266,635,628.28/399,966,826.86 = 84,896,978.04/x
  3. Step 3: Cross multiply
    266,635,628.28x = 399,966,826.86 × 84,896,978.04
  4. Step 4: Simplify right side
    266,635,628.28x = 33,955,974,916,661,904
  5. Step 5: Solve for x
    x = 33,955,974,916,661,904/266,635,628.28
  6. Step 6: Final answer
    x = 127,349,728.68

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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.