Home / 10,548,032.40-15,780,058.20-9,143,686.80

Finding the Fourth Proportional to 10,548,032.40, 15,780,058.20 and 9,143,686.80

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Solution

The fourth proportional to 10,548,032.40, 15,780,058.20 and 9,143,686.80 is: 13,679,130.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,548,032.40 : 15,780,058.20 = 9,143,686.80 : x
  2. Step 2: Convert to fraction form
    10,548,032.40/15,780,058.20 = 9,143,686.80/x
  3. Step 3: Cross multiply
    10,548,032.40x = 15,780,058.20 × 9,143,686.80
  4. Step 4: Simplify right side
    10,548,032.40x = 144,287,909,866,571.75
  5. Step 5: Solve for x
    x = 144,287,909,866,571.75/10,548,032.40
  6. Step 6: Final answer
    x = 13,679,130.32

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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.