Home / 15,553,386.40-23,330,079.60-12,341,120.80

Finding the Fourth Proportional to 15,553,386.40, 23,330,079.60 and 12,341,120.80

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Solution

The fourth proportional to 15,553,386.40, 23,330,079.60 and 12,341,120.80 is: 18,511,681.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553,386.40 : 23,330,079.60 = 12,341,120.80 : x
  2. Step 2: Convert to fraction form
    15,553,386.40/23,330,079.60 = 12,341,120.80/x
  3. Step 3: Cross multiply
    15,553,386.40x = 23,330,079.60 × 12,341,120.80
  4. Step 4: Simplify right side
    15,553,386.40x = 287,919,330,617,215.69
  5. Step 5: Solve for x
    x = 287,919,330,617,215.69/15,553,386.40
  6. Step 6: Final answer
    x = 18,511,681.20

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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.