Home / 126,148,196.40-189,222,294.60-77,468,200.80

Finding the Fourth Proportional to 126,148,196.40, 189,222,294.60 and 77,468,200.80

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Solution

The fourth proportional to 126,148,196.40, 189,222,294.60 and 77,468,200.80 is: 116,202,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,148,196.40 : 189,222,294.60 = 77,468,200.80 : x
  2. Step 2: Convert to fraction form
    126,148,196.40/189,222,294.60 = 77,468,200.80/x
  3. Step 3: Cross multiply
    126,148,196.40x = 189,222,294.60 × 77,468,200.80
  4. Step 4: Simplify right side
    126,148,196.40x = 14,658,710,713,909,554
  5. Step 5: Solve for x
    x = 14,658,710,713,909,554/126,148,196.40
  6. Step 6: Final answer
    x = 116,202,301.20

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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.