Home / 18,402,432.40-25,394,320.20-10,142,469.52

Finding the Fourth Proportional to 18,402,432.40, 25,394,320.20 and 10,142,469.52

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Solution

The fourth proportional to 18,402,432.40, 25,394,320.20 and 10,142,469.52 is: 13,996,036.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,402,432.40 : 25,394,320.20 = 10,142,469.52 : x
  2. Step 2: Convert to fraction form
    18,402,432.40/25,394,320.20 = 10,142,469.52/x
  3. Step 3: Cross multiply
    18,402,432.40x = 25,394,320.20 × 10,142,469.52
  4. Step 4: Simplify right side
    18,402,432.40x = 257,561,118,609,620.28
  5. Step 5: Solve for x
    x = 257,561,118,609,620.28/18,402,432.40
  6. Step 6: Final answer
    x = 13,996,036.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.