Home / 129,388,809.52-178,557,420.36-70,651,882.48

Finding the Fourth Proportional to 129,388,809.52, 178,557,420.36 and 70,651,882.48

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Solution

The fourth proportional to 129,388,809.52, 178,557,420.36 and 70,651,882.48 is: 97,500,069.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,388,809.52 : 178,557,420.36 = 70,651,882.48 : x
  2. Step 2: Convert to fraction form
    129,388,809.52/178,557,420.36 = 70,651,882.48/x
  3. Step 3: Cross multiply
    129,388,809.52x = 178,557,420.36 × 70,651,882.48
  4. Step 4: Simplify right side
    129,388,809.52x = 12,615,417,879,206,682
  5. Step 5: Solve for x
    x = 12,615,417,879,206,682/129,388,809.52
  6. Step 6: Final answer
    x = 97,500,069.18

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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.