Home / 79,185,645.70-118,778,468.55-66,431,061.70

Finding the Fourth Proportional to 79,185,645.70, 118,778,468.55 and 66,431,061.70

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Solution

The fourth proportional to 79,185,645.70, 118,778,468.55 and 66,431,061.70 is: 99,646,592.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,185,645.70 : 118,778,468.55 = 66,431,061.70 : x
  2. Step 2: Convert to fraction form
    79,185,645.70/118,778,468.55 = 66,431,061.70/x
  3. Step 3: Cross multiply
    79,185,645.70x = 118,778,468.55 × 66,431,061.70
  4. Step 4: Simplify right side
    79,185,645.70x = 7,890,579,772,876,560
  5. Step 5: Solve for x
    x = 7,890,579,772,876,560/79,185,645.70
  6. Step 6: Final answer
    x = 99,646,592.55

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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.