Home / 121,215,167.20-181,822,750.80-84,864,602.80

Finding the Fourth Proportional to 121,215,167.20, 181,822,750.80 and 84,864,602.80

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Solution

The fourth proportional to 121,215,167.20, 181,822,750.80 and 84,864,602.80 is: 127,296,904.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,215,167.20 : 181,822,750.80 = 84,864,602.80 : x
  2. Step 2: Convert to fraction form
    121,215,167.20/181,822,750.80 = 84,864,602.80/x
  3. Step 3: Cross multiply
    121,215,167.20x = 181,822,750.80 × 84,864,602.80
  4. Step 4: Simplify right side
    121,215,167.20x = 15,430,315,526,645,382
  5. Step 5: Solve for x
    x = 15,430,315,526,645,382/121,215,167.20
  6. Step 6: Final answer
    x = 127,296,904.20

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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.