Home / 122,087,479.43-168,482,253.81-66,333,830.74

Finding the Fourth Proportional to 122,087,479.43, 168,482,253.81 and 66,333,830.74

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Solution

The fourth proportional to 122,087,479.43, 168,482,253.81 and 66,333,830.74 is: 91,541,518.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,087,479.43 : 168,482,253.81 = 66,333,830.74 : x
  2. Step 2: Convert to fraction form
    122,087,479.43/168,482,253.81 = 66,333,830.74/x
  3. Step 3: Cross multiply
    122,087,479.43x = 168,482,253.81 × 66,333,830.74
  4. Step 4: Simplify right side
    122,087,479.43x = 11,176,073,306,854,288
  5. Step 5: Solve for x
    x = 11,176,073,306,854,288/122,087,479.43
  6. Step 6: Final answer
    x = 91,541,518.91

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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.