Home / 127,225,891.20-190,838,836.80-45,437,121.30

Finding the Fourth Proportional to 127,225,891.20, 190,838,836.80 and 45,437,121.30

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Solution

The fourth proportional to 127,225,891.20, 190,838,836.80 and 45,437,121.30 is: 68,155,681.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,225,891.20 : 190,838,836.80 = 45,437,121.30 : x
  2. Step 2: Convert to fraction form
    127,225,891.20/190,838,836.80 = 45,437,121.30/x
  3. Step 3: Cross multiply
    127,225,891.20x = 190,838,836.80 × 45,437,121.30
  4. Step 4: Simplify right side
    127,225,891.20x = 8,671,167,376,432,504
  5. Step 5: Solve for x
    x = 8,671,167,376,432,504/127,225,891.20
  6. Step 6: Final answer
    x = 68,155,681.95

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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.