Home / 84,616,869.60-126,925,304.40-77,185,087.20

Finding the Fourth Proportional to 84,616,869.60, 126,925,304.40 and 77,185,087.20

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Solution

The fourth proportional to 84,616,869.60, 126,925,304.40 and 77,185,087.20 is: 115,777,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,616,869.60 : 126,925,304.40 = 77,185,087.20 : x
  2. Step 2: Convert to fraction form
    84,616,869.60/126,925,304.40 = 77,185,087.20/x
  3. Step 3: Cross multiply
    84,616,869.60x = 126,925,304.40 × 77,185,087.20
  4. Step 4: Simplify right side
    84,616,869.60x = 9,796,740,688,000,544
  5. Step 5: Solve for x
    x = 9,796,740,688,000,544/84,616,869.60
  6. Step 6: Final answer
    x = 115,777,630.80

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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.