Home / 139,391,996.80-209,087,995.20-124,779,337.60

Finding the Fourth Proportional to 139,391,996.80, 209,087,995.20 and 124,779,337.60

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Solution

The fourth proportional to 139,391,996.80, 209,087,995.20 and 124,779,337.60 is: 187,169,006.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,391,996.80 : 209,087,995.20 = 124,779,337.60 : x
  2. Step 2: Convert to fraction form
    139,391,996.80/209,087,995.20 = 124,779,337.60/x
  3. Step 3: Cross multiply
    139,391,996.80x = 209,087,995.20 × 124,779,337.60
  4. Step 4: Simplify right side
    139,391,996.80x = 26,089,861,541,167,976
  5. Step 5: Solve for x
    x = 26,089,861,541,167,976/139,391,996.80
  6. Step 6: Final answer
    x = 187,169,006.40

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1.5x scale

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.