Home / 121,127,959.30-181,691,938.95-70,109,623.30

Finding the Fourth Proportional to 121,127,959.30, 181,691,938.95 and 70,109,623.30

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Solution

The fourth proportional to 121,127,959.30, 181,691,938.95 and 70,109,623.30 is: 105,164,434.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,127,959.30 : 181,691,938.95 = 70,109,623.30 : x
  2. Step 2: Convert to fraction form
    121,127,959.30/181,691,938.95 = 70,109,623.30/x
  3. Step 3: Cross multiply
    121,127,959.30x = 181,691,938.95 × 70,109,623.30
  4. Step 4: Simplify right side
    121,127,959.30x = 12,738,353,396,431,096
  5. Step 5: Solve for x
    x = 12,738,353,396,431,096/121,127,959.30
  6. Step 6: Final answer
    x = 105,164,434.95

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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.