Home / 121,117,908.30-181,460,349.45-73,708,122.30

Finding the Fourth Proportional to 121,117,908.30, 181,460,349.45 and 73,708,122.30

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Solution

The fourth proportional to 121,117,908.30, 181,460,349.45 and 73,708,122.30 is: 110,430,421.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,117,908.30 : 181,460,349.45 = 73,708,122.30 : x
  2. Step 2: Convert to fraction form
    121,117,908.30/181,460,349.45 = 73,708,122.30/x
  3. Step 3: Cross multiply
    121,117,908.30x = 181,460,349.45 × 73,708,122.30
  4. Step 4: Simplify right side
    121,117,908.30x = 13,375,101,629,861,336
  5. Step 5: Solve for x
    x = 13,375,101,629,861,336/121,117,908.30
  6. Step 6: Final answer
    x = 110,430,421.21

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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.