Home / 139,968,001.90-209,952,002.85-129,764,334.70

Finding the Fourth Proportional to 139,968,001.90, 209,952,002.85 and 129,764,334.70

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Solution

The fourth proportional to 139,968,001.90, 209,952,002.85 and 129,764,334.70 is: 194,646,502.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,001.90 : 209,952,002.85 = 129,764,334.70 : x
  2. Step 2: Convert to fraction form
    139,968,001.90/209,952,002.85 = 129,764,334.70/x
  3. Step 3: Cross multiply
    139,968,001.90x = 209,952,002.85 × 129,764,334.70
  4. Step 4: Simplify right side
    139,968,001.90x = 27,244,281,968,762,752
  5. Step 5: Solve for x
    x = 27,244,281,968,762,752/139,968,001.90
  6. Step 6: Final answer
    x = 194,646,502.05

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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.