Home / 10,287,070.80-15,414,859.80-9,720,200.40

Finding the Fourth Proportional to 10,287,070.80, 15,414,859.80 and 9,720,200.40

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Solution

The fourth proportional to 10,287,070.80, 15,414,859.80 and 9,720,200.40 is: 14,565,421.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,287,070.80 : 15,414,859.80 = 9,720,200.40 : x
  2. Step 2: Convert to fraction form
    10,287,070.80/15,414,859.80 = 9,720,200.40/x
  3. Step 3: Cross multiply
    10,287,070.80x = 15,414,859.80 × 9,720,200.40
  4. Step 4: Simplify right side
    10,287,070.80x = 149,835,526,393,903.94
  5. Step 5: Solve for x
    x = 149,835,526,393,903.94/10,287,070.80
  6. Step 6: Final answer
    x = 14,565,421.91

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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.