Home / 15,779,140.90-23,668,711.35-12,942,456.10

Finding the Fourth Proportional to 15,779,140.90, 23,668,711.35 and 12,942,456.10

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Solution

The fourth proportional to 15,779,140.90, 23,668,711.35 and 12,942,456.10 is: 19,413,684.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,779,140.90 : 23,668,711.35 = 12,942,456.10 : x
  2. Step 2: Convert to fraction form
    15,779,140.90/23,668,711.35 = 12,942,456.10/x
  3. Step 3: Cross multiply
    15,779,140.90x = 23,668,711.35 × 12,942,456.10
  4. Step 4: Simplify right side
    15,779,140.90x = 306,331,257,590,946.75
  5. Step 5: Solve for x
    x = 306,331,257,590,946.75/15,779,140.90
  6. Step 6: Final answer
    x = 19,413,684.15

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Double scale
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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.