Home / 69,871,781.66-96,423,441.12-40,520,516.60

Finding the Fourth Proportional to 69,871,781.66, 96,423,441.12 and 40,520,516.60

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Solution

The fourth proportional to 69,871,781.66, 96,423,441.12 and 40,520,516.60 is: 55,918,534.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,871,781.66 : 96,423,441.12 = 40,520,516.60 : x
  2. Step 2: Convert to fraction form
    69,871,781.66/96,423,441.12 = 40,520,516.60/x
  3. Step 3: Cross multiply
    69,871,781.66x = 96,423,441.12 × 40,520,516.60
  4. Step 4: Simplify right side
    69,871,781.66x = 3,907,127,646,532,083
  5. Step 5: Solve for x
    x = 3,907,127,646,532,083/69,871,781.66
  6. Step 6: Final answer
    x = 55,918,534.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.