Home / 121,127,959.80-181,691,939.70-70,109,623.80

Finding the Fourth Proportional to 121,127,959.80, 181,691,939.70 and 70,109,623.80

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Solution

The fourth proportional to 121,127,959.80, 181,691,939.70 and 70,109,623.80 is: 105,164,435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,127,959.80 : 181,691,939.70 = 70,109,623.80 : x
  2. Step 2: Convert to fraction form
    121,127,959.80/181,691,939.70 = 70,109,623.80/x
  3. Step 3: Cross multiply
    121,127,959.80x = 181,691,939.70 × 70,109,623.80
  4. Step 4: Simplify right side
    121,127,959.80x = 12,738,353,539,859,284
  5. Step 5: Solve for x
    x = 12,738,353,539,859,284/121,127,959.80
  6. Step 6: Final answer
    x = 105,164,435.70

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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.