Home / 72,035,307.32-108,055,950.17-20,917,326.11

Finding the Fourth Proportional to 72,035,307.32, 108,055,950.17 and 20,917,326.11

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Solution

The fourth proportional to 72,035,307.32, 108,055,950.17 and 20,917,326.11 is: 31,376,857.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,035,307.32 : 108,055,950.17 = 20,917,326.11 : x
  2. Step 2: Convert to fraction form
    72,035,307.32/108,055,950.17 = 20,917,326.11/x
  3. Step 3: Cross multiply
    72,035,307.32x = 108,055,950.17 × 20,917,326.11
  4. Step 4: Simplify right side
    72,035,307.32x = 2,260,241,547,186,933.50
  5. Step 5: Solve for x
    x = 2,260,241,547,186,933.50/72,035,307.32
  6. Step 6: Final answer
    x = 31,376,857.15

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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.