Home / 12,288,713.60-18,433,070.40-8,698,534.40

Finding the Fourth Proportional to 12,288,713.60, 18,433,070.40 and 8,698,534.40

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Solution

The fourth proportional to 12,288,713.60, 18,433,070.40 and 8,698,534.40 is: 13,047,801.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288,713.60 : 18,433,070.40 = 8,698,534.40 : x
  2. Step 2: Convert to fraction form
    12,288,713.60/18,433,070.40 = 8,698,534.40/x
  3. Step 3: Cross multiply
    12,288,713.60x = 18,433,070.40 × 8,698,534.40
  4. Step 4: Simplify right side
    12,288,713.60x = 160,340,696,972,021.75
  5. Step 5: Solve for x
    x = 160,340,696,972,021.75/12,288,713.60
  6. Step 6: Final answer
    x = 13,047,801.60

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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.