Home / 130,986,241.66-180,757,845.78-72,247,645

Finding the Fourth Proportional to 130,986,241.66, 180,757,845.78 and 72,247,645

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Solution

The fourth proportional to 130,986,241.66, 180,757,845.78 and 72,247,645 is: 99,700,002.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,986,241.66 : 180,757,845.78 = 72,247,645 : x
  2. Step 2: Convert to fraction form
    130,986,241.66/180,757,845.78 = 72,247,645/x
  3. Step 3: Cross multiply
    130,986,241.66x = 180,757,845.78 × 72,247,645
  4. Step 4: Simplify right side
    130,986,241.66x = 13,059,328,672,878,188
  5. Step 5: Solve for x
    x = 13,059,328,672,878,188/130,986,241.66
  6. Step 6: Final answer
    x = 99,700,002.90

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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.