Home / 127,812,659.20-191,718,988.80-84,814,489.60

Finding the Fourth Proportional to 127,812,659.20, 191,718,988.80 and 84,814,489.60

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Solution

The fourth proportional to 127,812,659.20, 191,718,988.80 and 84,814,489.60 is: 127,221,734.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,812,659.20 : 191,718,988.80 = 84,814,489.60 : x
  2. Step 2: Convert to fraction form
    127,812,659.20/191,718,988.80 = 84,814,489.60/x
  3. Step 3: Cross multiply
    127,812,659.20x = 191,718,988.80 × 84,814,489.60
  4. Step 4: Simplify right side
    127,812,659.20x = 16,260,548,181,700,116
  5. Step 5: Solve for x
    x = 16,260,548,181,700,116/127,812,659.20
  6. Step 6: Final answer
    x = 127,221,734.40

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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.