Home / 97,960,005.20-146,940,007.80-86,016,069.20

Finding the Fourth Proportional to 97,960,005.20, 146,940,007.80 and 86,016,069.20

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Solution

The fourth proportional to 97,960,005.20, 146,940,007.80 and 86,016,069.20 is: 129,024,103.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,960,005.20 : 146,940,007.80 = 86,016,069.20 : x
  2. Step 2: Convert to fraction form
    97,960,005.20/146,940,007.80 = 86,016,069.20/x
  3. Step 3: Cross multiply
    97,960,005.20x = 146,940,007.80 × 86,016,069.20
  4. Step 4: Simplify right side
    97,960,005.20x = 12,639,201,879,173,342
  5. Step 5: Solve for x
    x = 12,639,201,879,173,342/97,960,005.20
  6. Step 6: Final answer
    x = 129,024,103.80

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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.