Home / 121,334,174.89-181,712,363.76-77,479,093.06

Finding the Fourth Proportional to 121,334,174.89, 181,712,363.76 and 77,479,093.06

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Solution

The fourth proportional to 121,334,174.89, 181,712,363.76 and 77,479,093.06 is: 116,034,160.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,334,174.89 : 181,712,363.76 = 77,479,093.06 : x
  2. Step 2: Convert to fraction form
    121,334,174.89/181,712,363.76 = 77,479,093.06/x
  3. Step 3: Cross multiply
    121,334,174.89x = 181,712,363.76 × 77,479,093.06
  4. Step 4: Simplify right side
    121,334,174.89x = 14,078,909,141,913,612
  5. Step 5: Solve for x
    x = 14,078,909,141,913,612/121,334,174.89
  6. Step 6: Final answer
    x = 116,034,160.65

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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.