Home / 145,726,609.80-218,449,946.70-84,252,664.20

Finding the Fourth Proportional to 145,726,609.80, 218,449,946.70 and 84,252,664.20

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Solution

The fourth proportional to 145,726,609.80, 218,449,946.70 and 84,252,664.20 is: 126,298,073.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,726,609.80 : 218,449,946.70 = 84,252,664.20 : x
  2. Step 2: Convert to fraction form
    145,726,609.80/218,449,946.70 = 84,252,664.20/x
  3. Step 3: Cross multiply
    145,726,609.80x = 218,449,946.70 × 84,252,664.20
  4. Step 4: Simplify right side
    145,726,609.80x = 18,404,990,003,822,996
  5. Step 5: Solve for x
    x = 18,404,990,003,822,996/145,726,609.80
  6. Step 6: Final answer
    x = 126,298,073.01

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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.