Home / 121,014,013.20-181,521,019.80-39,132,733.20

Finding the Fourth Proportional to 121,014,013.20, 181,521,019.80 and 39,132,733.20

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Solution

The fourth proportional to 121,014,013.20, 181,521,019.80 and 39,132,733.20 is: 58,699,099.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,014,013.20 : 181,521,019.80 = 39,132,733.20 : x
  2. Step 2: Convert to fraction form
    121,014,013.20/181,521,019.80 = 39,132,733.20/x
  3. Step 3: Cross multiply
    121,014,013.20x = 181,521,019.80 × 39,132,733.20
  4. Step 4: Simplify right side
    121,014,013.20x = 7,103,413,638,025,318
  5. Step 5: Solve for x
    x = 7,103,413,638,025,318/121,014,013.20
  6. Step 6: Final answer
    x = 58,699,099.80

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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.