Home / 126,088,281.60-189,132,422.40-68,692,653.60

Finding the Fourth Proportional to 126,088,281.60, 189,132,422.40 and 68,692,653.60

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Solution

The fourth proportional to 126,088,281.60, 189,132,422.40 and 68,692,653.60 is: 103,038,980.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,088,281.60 : 189,132,422.40 = 68,692,653.60 : x
  2. Step 2: Convert to fraction form
    126,088,281.60/189,132,422.40 = 68,692,653.60/x
  3. Step 3: Cross multiply
    126,088,281.60x = 189,132,422.40 × 68,692,653.60
  4. Step 4: Simplify right side
    126,088,281.60x = 12,992,007,976,452,080
  5. Step 5: Solve for x
    x = 12,992,007,976,452,080/126,088,281.60
  6. Step 6: Final answer
    x = 103,038,980.40

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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.