Home / 69,146,432.40-103,724,897.40-20,620,498.80

Finding the Fourth Proportional to 69,146,432.40, 103,724,897.40 and 20,620,498.80

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Solution

The fourth proportional to 69,146,432.40, 103,724,897.40 and 20,620,498.80 is: 30,932,313.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,146,432.40 : 103,724,897.40 = 20,620,498.80 : x
  2. Step 2: Convert to fraction form
    69,146,432.40/103,724,897.40 = 20,620,498.80/x
  3. Step 3: Cross multiply
    69,146,432.40x = 103,724,897.40 × 20,620,498.80
  4. Step 4: Simplify right side
    69,146,432.40x = 2,138,859,122,366,823.25
  5. Step 5: Solve for x
    x = 2,138,859,122,366,823.25/69,146,432.40
  6. Step 6: Final answer
    x = 30,932,313.47

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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.