Home / 10,549,612.40-15,782,428.20-9,145,266.80

Finding the Fourth Proportional to 10,549,612.40, 15,782,428.20 and 9,145,266.80

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Solution

The fourth proportional to 10,549,612.40, 15,782,428.20 and 9,145,266.80 is: 13,681,499.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,549,612.40 : 15,782,428.20 = 9,145,266.80 : x
  2. Step 2: Convert to fraction form
    10,549,612.40/15,782,428.20 = 9,145,266.80/x
  3. Step 3: Cross multiply
    10,549,612.40x = 15,782,428.20 × 9,145,266.80
  4. Step 4: Simplify right side
    10,549,612.40x = 144,334,516,640,843.75
  5. Step 5: Solve for x
    x = 144,334,516,640,843.75/10,549,612.40
  6. Step 6: Final answer
    x = 13,681,499.49

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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.