Home / 84,948,128.64-117,224,686.08-47,781,509.76

Finding the Fourth Proportional to 84,948,128.64, 117,224,686.08 and 47,781,509.76

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Solution

The fourth proportional to 84,948,128.64, 117,224,686.08 and 47,781,509.76 is: 65,936,384.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,948,128.64 : 117,224,686.08 = 47,781,509.76 : x
  2. Step 2: Convert to fraction form
    84,948,128.64/117,224,686.08 = 47,781,509.76/x
  3. Step 3: Cross multiply
    84,948,128.64x = 117,224,686.08 × 47,781,509.76
  4. Step 4: Simplify right side
    84,948,128.64x = 5,601,172,482,044,456
  5. Step 5: Solve for x
    x = 5,601,172,482,044,456/84,948,128.64
  6. Step 6: Final answer
    x = 65,936,384.61

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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.