Home / 25,808,001.60-38,712,002.40-21,030,427.20

Finding the Fourth Proportional to 25,808,001.60, 38,712,002.40 and 21,030,427.20

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Solution

The fourth proportional to 25,808,001.60, 38,712,002.40 and 21,030,427.20 is: 31,545,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,808,001.60 : 38,712,002.40 = 21,030,427.20 : x
  2. Step 2: Convert to fraction form
    25,808,001.60/38,712,002.40 = 21,030,427.20/x
  3. Step 3: Cross multiply
    25,808,001.60x = 38,712,002.40 × 21,030,427.20
  4. Step 4: Simplify right side
    25,808,001.60x = 814,129,948,239,425.25
  5. Step 5: Solve for x
    x = 814,129,948,239,425.25/25,808,001.60
  6. Step 6: Final answer
    x = 31,545,640.80

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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.