Home / 12,300,854.40-18,451,281.60-5,909,565.60

Finding the Fourth Proportional to 12,300,854.40, 18,451,281.60 and 5,909,565.60

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Solution

The fourth proportional to 12,300,854.40, 18,451,281.60 and 5,909,565.60 is: 8,864,348.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,300,854.40 : 18,451,281.60 = 5,909,565.60 : x
  2. Step 2: Convert to fraction form
    12,300,854.40/18,451,281.60 = 5,909,565.60/x
  3. Step 3: Cross multiply
    12,300,854.40x = 18,451,281.60 × 5,909,565.60
  4. Step 4: Simplify right side
    12,300,854.40x = 109,039,059,019,272.97
  5. Step 5: Solve for x
    x = 109,039,059,019,272.97/12,300,854.40
  6. Step 6: Final answer
    x = 8,864,348.40

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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.