Home / 146,708,447.70-220,062,671.55-78,683,999.70

Finding the Fourth Proportional to 146,708,447.70, 220,062,671.55 and 78,683,999.70

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Solution

The fourth proportional to 146,708,447.70, 220,062,671.55 and 78,683,999.70 is: 118,025,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,708,447.70 : 220,062,671.55 = 78,683,999.70 : x
  2. Step 2: Convert to fraction form
    146,708,447.70/220,062,671.55 = 78,683,999.70/x
  3. Step 3: Cross multiply
    146,708,447.70x = 220,062,671.55 × 78,683,999.70
  4. Step 4: Simplify right side
    146,708,447.70x = 17,315,411,182,221,400
  5. Step 5: Solve for x
    x = 17,315,411,182,221,400/146,708,447.70
  6. Step 6: Final answer
    x = 118,025,999.55

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1.5x scale

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.