Home / 21,860,935.40-32,791,403.10-20,927,961.20

Finding the Fourth Proportional to 21,860,935.40, 32,791,403.10 and 20,927,961.20

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Solution

The fourth proportional to 21,860,935.40, 32,791,403.10 and 20,927,961.20 is: 31,391,941.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860,935.40 : 32,791,403.10 = 20,927,961.20 : x
  2. Step 2: Convert to fraction form
    21,860,935.40/32,791,403.10 = 20,927,961.20/x
  3. Step 3: Cross multiply
    21,860,935.40x = 32,791,403.10 × 20,927,961.20
  4. Step 4: Simplify right side
    21,860,935.40x = 686,257,211,770,359.75
  5. Step 5: Solve for x
    x = 686,257,211,770,359.75/21,860,935.40
  6. Step 6: Final answer
    x = 31,391,941.80

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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.