Home / 21,335,032.55-31,989,589.47-8,365,644.93

Finding the Fourth Proportional to 21,335,032.55, 31,989,589.47 and 8,365,644.93

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Solution

The fourth proportional to 21,335,032.55, 31,989,589.47 and 8,365,644.93 is: 12,543,385.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335,032.55 : 31,989,589.47 = 8,365,644.93 : x
  2. Step 2: Convert to fraction form
    21,335,032.55/31,989,589.47 = 8,365,644.93/x
  3. Step 3: Cross multiply
    21,335,032.55x = 31,989,589.47 × 8,365,644.93
  4. Step 4: Simplify right side
    21,335,032.55x = 267,613,547,082,447.84
  5. Step 5: Solve for x
    x = 267,613,547,082,447.84/21,335,032.55
  6. Step 6: Final answer
    x = 12,543,385.93

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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.