Home / 91,818,009.70-137,727,014.55-79,860,587.20

Finding the Fourth Proportional to 91,818,009.70, 137,727,014.55 and 79,860,587.20

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Solution

The fourth proportional to 91,818,009.70, 137,727,014.55 and 79,860,587.20 is: 119,790,880.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,818,009.70 : 137,727,014.55 = 79,860,587.20 : x
  2. Step 2: Convert to fraction form
    91,818,009.70/137,727,014.55 = 79,860,587.20/x
  3. Step 3: Cross multiply
    91,818,009.70x = 137,727,014.55 × 79,860,587.20
  4. Step 4: Simplify right side
    91,818,009.70x = 10,998,960,255,265,946
  5. Step 5: Solve for x
    x = 10,998,960,255,265,946/91,818,009.70
  6. Step 6: Final answer
    x = 119,790,880.80

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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.