Home / 13,872,003.60-20,808,005.40-7,153,539.60

Finding the Fourth Proportional to 13,872,003.60, 20,808,005.40 and 7,153,539.60

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Solution

The fourth proportional to 13,872,003.60, 20,808,005.40 and 7,153,539.60 is: 10,730,309.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872,003.60 : 20,808,005.40 = 7,153,539.60 : x
  2. Step 2: Convert to fraction form
    13,872,003.60/20,808,005.40 = 7,153,539.60/x
  3. Step 3: Cross multiply
    13,872,003.60x = 20,808,005.40 × 7,153,539.60
  4. Step 4: Simplify right side
    13,872,003.60x = 148,850,890,625,913.81
  5. Step 5: Solve for x
    x = 148,850,890,625,913.81/13,872,003.60
  6. Step 6: Final answer
    x = 10,730,309.40

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Similar ratio
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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.