Home / 21,005,360.64-31,495,443.84-9,631,560.96

Finding the Fourth Proportional to 21,005,360.64, 31,495,443.84 and 9,631,560.96

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Solution

The fourth proportional to 21,005,360.64, 31,495,443.84 and 9,631,560.96 is: 14,441,565.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,005,360.64 : 31,495,443.84 = 9,631,560.96 : x
  2. Step 2: Convert to fraction form
    21,005,360.64/31,495,443.84 = 9,631,560.96/x
  3. Step 3: Cross multiply
    21,005,360.64x = 31,495,443.84 × 9,631,560.96
  4. Step 4: Simplify right side
    21,005,360.64x = 303,350,287,307,216.50
  5. Step 5: Solve for x
    x = 303,350,287,307,216.50/21,005,360.64
  6. Step 6: Final answer
    x = 14,441,565.30

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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.