Home / 118,350,892.36-163,310,086.60-65,420,449.93

Finding the Fourth Proportional to 118,350,892.36, 163,310,086.60 and 65,420,449.93

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Solution

The fourth proportional to 118,350,892.36, 163,310,086.60 and 65,420,449.93 is: 90,272,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,350,892.36 : 163,310,086.60 = 65,420,449.93 : x
  2. Step 2: Convert to fraction form
    118,350,892.36/163,310,086.60 = 65,420,449.93/x
  3. Step 3: Cross multiply
    118,350,892.36x = 163,310,086.60 × 65,420,449.93
  4. Step 4: Simplify right side
    118,350,892.36x = 10,683,819,343,479,264
  5. Step 5: Solve for x
    x = 10,683,819,343,479,264/118,350,892.36
  6. Step 6: Final answer
    x = 90,272,402.10

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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.