Home / 149,120,466,395.46-205,786,235,755.71-80,531,872,909.98

Finding the Fourth Proportional to 149,120,466,395.46, 205,786,235,755.71 and 80,531,872,909.98

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Solution

The fourth proportional to 149,120,466,395.46, 205,786,235,755.71 and 80,531,872,909.98 is: 111,133,980,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,120,466,395.46 : 205,786,235,755.71 = 80,531,872,909.98 : x
  2. Step 2: Convert to fraction form
    149,120,466,395.46/205,786,235,755.71 = 80,531,872,909.98/x
  3. Step 3: Cross multiply
    149,120,466,395.46x = 205,786,235,755.71 × 80,531,872,909.98
  4. Step 4: Simplify right side
    149,120,466,395.46x = 16,572,350,984,502,017,785,856
  5. Step 5: Solve for x
    x = 16,572,350,984,502,017,785,856/149,120,466,395.46
  6. Step 6: Final answer
    x = 111,133,980,365.60

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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.