Home / 20,371,508.80-30,557,263.20-5,225,440.30

Finding the Fourth Proportional to 20,371,508.80, 30,557,263.20 and 5,225,440.30

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Solution

The fourth proportional to 20,371,508.80, 30,557,263.20 and 5,225,440.30 is: 7,838,160.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,371,508.80 : 30,557,263.20 = 5,225,440.30 : x
  2. Step 2: Convert to fraction form
    20,371,508.80/30,557,263.20 = 5,225,440.30/x
  3. Step 3: Cross multiply
    20,371,508.80x = 30,557,263.20 × 5,225,440.30
  4. Step 4: Simplify right side
    20,371,508.80x = 159,675,154,582,986.94
  5. Step 5: Solve for x
    x = 159,675,154,582,986.94/20,371,508.80
  6. Step 6: Final answer
    x = 7,838,160.45

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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.