Home / 98,124,003.60-147,186,005.40-78,992,127.60

Finding the Fourth Proportional to 98,124,003.60, 147,186,005.40 and 78,992,127.60

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Solution

The fourth proportional to 98,124,003.60, 147,186,005.40 and 78,992,127.60 is: 118,488,191.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,124,003.60 : 147,186,005.40 = 78,992,127.60 : x
  2. Step 2: Convert to fraction form
    98,124,003.60/147,186,005.40 = 78,992,127.60/x
  3. Step 3: Cross multiply
    98,124,003.60x = 147,186,005.40 × 78,992,127.60
  4. Step 4: Simplify right side
    98,124,003.60x = 11,626,535,719,491,088
  5. Step 5: Solve for x
    x = 11,626,535,719,491,088/98,124,003.60
  6. Step 6: Final answer
    x = 118,488,191.40

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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.