Home / 139,968,008.10-209,952,012.15-126,575,694.90

Finding the Fourth Proportional to 139,968,008.10, 209,952,012.15 and 126,575,694.90

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Solution

The fourth proportional to 139,968,008.10, 209,952,012.15 and 126,575,694.90 is: 189,863,542.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,008.10 : 209,952,012.15 = 126,575,694.90 : x
  2. Step 2: Convert to fraction form
    139,968,008.10/209,952,012.15 = 126,575,694.90/x
  3. Step 3: Cross multiply
    139,968,008.10x = 209,952,012.15 × 126,575,694.90
  4. Step 4: Simplify right side
    139,968,008.10x = 26,574,821,833,539,496
  5. Step 5: Solve for x
    x = 26,574,821,833,539,496/139,968,008.10
  6. Step 6: Final answer
    x = 189,863,542.35

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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.