Home / 146,772,257.60-220,158,386.40-78,747,809.60

Finding the Fourth Proportional to 146,772,257.60, 220,158,386.40 and 78,747,809.60

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Solution

The fourth proportional to 146,772,257.60, 220,158,386.40 and 78,747,809.60 is: 118,121,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,772,257.60 : 220,158,386.40 = 78,747,809.60 : x
  2. Step 2: Convert to fraction form
    146,772,257.60/220,158,386.40 = 78,747,809.60/x
  3. Step 3: Cross multiply
    146,772,257.60x = 220,158,386.40 × 78,747,809.60
  4. Step 4: Simplify right side
    146,772,257.60x = 17,336,990,694,070,428
  5. Step 5: Solve for x
    x = 17,336,990,694,070,428/146,772,257.60
  6. Step 6: Final answer
    x = 118,121,714.40

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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.