Home / 72,431,613.40-108,647,420.10-18,578,925.40

Finding the Fourth Proportional to 72,431,613.40, 108,647,420.10 and 18,578,925.40

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Solution

The fourth proportional to 72,431,613.40, 108,647,420.10 and 18,578,925.40 is: 27,868,388.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,431,613.40 : 108,647,420.10 = 18,578,925.40 : x
  2. Step 2: Convert to fraction form
    72,431,613.40/108,647,420.10 = 18,578,925.40/x
  3. Step 3: Cross multiply
    72,431,613.40x = 108,647,420.10 × 18,578,925.40
  4. Step 4: Simplify right side
    72,431,613.40x = 2,018,552,312,940,360.25
  5. Step 5: Solve for x
    x = 2,018,552,312,940,360.25/72,431,613.40
  6. Step 6: Final answer
    x = 27,868,388.10

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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.