Home / 127,808,001.20-191,712,001.80-71,074,305.20

Finding the Fourth Proportional to 127,808,001.20, 191,712,001.80 and 71,074,305.20

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Solution

The fourth proportional to 127,808,001.20, 191,712,001.80 and 71,074,305.20 is: 106,611,457.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,808,001.20 : 191,712,001.80 = 71,074,305.20 : x
  2. Step 2: Convert to fraction form
    127,808,001.20/191,712,001.80 = 71,074,305.20/x
  3. Step 3: Cross multiply
    127,808,001.20x = 191,712,001.80 × 71,074,305.20
  4. Step 4: Simplify right side
    127,808,001.20x = 13,625,797,326,436,150
  5. Step 5: Solve for x
    x = 13,625,797,326,436,150/127,808,001.20
  6. Step 6: Final answer
    x = 106,611,457.80

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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.