Home / 40,284,242.66-60,438,155.30-12,989,986.50

Finding the Fourth Proportional to 40,284,242.66, 60,438,155.30 and 12,989,986.50

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Solution

The fourth proportional to 40,284,242.66, 60,438,155.30 and 12,989,986.50 is: 19,488,781.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,284,242.66 : 60,438,155.30 = 12,989,986.50 : x
  2. Step 2: Convert to fraction form
    40,284,242.66/60,438,155.30 = 12,989,986.50/x
  3. Step 3: Cross multiply
    40,284,242.66x = 60,438,155.30 × 12,989,986.50
  4. Step 4: Simplify right side
    40,284,242.66x = 785,090,821,431,903.38
  5. Step 5: Solve for x
    x = 785,090,821,431,903.38/40,284,242.66
  6. Step 6: Final answer
    x = 19,488,781.96

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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.