Home / 72,578,009.70-108,867,014.55-67,035,276.90

Finding the Fourth Proportional to 72,578,009.70, 108,867,014.55 and 67,035,276.90

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Solution

The fourth proportional to 72,578,009.70, 108,867,014.55 and 67,035,276.90 is: 100,552,915.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,578,009.70 : 108,867,014.55 = 67,035,276.90 : x
  2. Step 2: Convert to fraction form
    72,578,009.70/108,867,014.55 = 67,035,276.90/x
  3. Step 3: Cross multiply
    72,578,009.70x = 108,867,014.55 × 67,035,276.90
  4. Step 4: Simplify right side
    72,578,009.70x = 7,297,930,465,635,579
  5. Step 5: Solve for x
    x = 7,297,930,465,635,579/72,578,009.70
  6. Step 6: Final answer
    x = 100,552,915.35

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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.