Home / 14,001,878.40-21,002,817.60-8,319,177.60

Finding the Fourth Proportional to 14,001,878.40, 21,002,817.60 and 8,319,177.60

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Solution

The fourth proportional to 14,001,878.40, 21,002,817.60 and 8,319,177.60 is: 12,478,766.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001,878.40 : 21,002,817.60 = 8,319,177.60 : x
  2. Step 2: Convert to fraction form
    14,001,878.40/21,002,817.60 = 8,319,177.60/x
  3. Step 3: Cross multiply
    14,001,878.40x = 21,002,817.60 × 8,319,177.60
  4. Step 4: Simplify right side
    14,001,878.40x = 174,726,169,714,805.75
  5. Step 5: Solve for x
    x = 174,726,169,714,805.75/14,001,878.40
  6. Step 6: Final answer
    x = 12,478,766.40

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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.