Home / 146,708,812.20-220,063,218.30-78,684,364.20

Finding the Fourth Proportional to 146,708,812.20, 220,063,218.30 and 78,684,364.20

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Solution

The fourth proportional to 146,708,812.20, 220,063,218.30 and 78,684,364.20 is: 118,026,546.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,708,812.20 : 220,063,218.30 = 78,684,364.20 : x
  2. Step 2: Convert to fraction form
    146,708,812.20/220,063,218.30 = 78,684,364.20/x
  3. Step 3: Cross multiply
    146,708,812.20x = 220,063,218.30 × 78,684,364.20
  4. Step 4: Simplify right side
    146,708,812.20x = 17,315,534,415,741,306
  5. Step 5: Solve for x
    x = 17,315,534,415,741,306/146,708,812.20
  6. Step 6: Final answer
    x = 118,026,546.30

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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.