Home / 140,228,712.30-210,343,068.45-75,658,630.80

Finding the Fourth Proportional to 140,228,712.30, 210,343,068.45 and 75,658,630.80

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Solution

The fourth proportional to 140,228,712.30, 210,343,068.45 and 75,658,630.80 is: 113,487,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,228,712.30 : 210,343,068.45 = 75,658,630.80 : x
  2. Step 2: Convert to fraction form
    140,228,712.30/210,343,068.45 = 75,658,630.80/x
  3. Step 3: Cross multiply
    140,228,712.30x = 210,343,068.45 × 75,658,630.80
  4. Step 4: Simplify right side
    140,228,712.30x = 15,914,268,557,197,676
  5. Step 5: Solve for x
    x = 15,914,268,557,197,676/140,228,712.30
  6. Step 6: Final answer
    x = 113,487,946.20

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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.