Home / 72,035,349.50-108,056,012.24-20,917,368.32

Finding the Fourth Proportional to 72,035,349.50, 108,056,012.24 and 20,917,368.32

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Solution

The fourth proportional to 72,035,349.50, 108,056,012.24 and 20,917,368.32 is: 31,376,920.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,035,349.50 : 108,056,012.24 = 20,917,368.32 : x
  2. Step 2: Convert to fraction form
    72,035,349.50/108,056,012.24 = 20,917,368.32/x
  3. Step 3: Cross multiply
    72,035,349.50x = 108,056,012.24 × 20,917,368.32
  4. Step 4: Simplify right side
    72,035,349.50x = 2,260,247,406,726,522
  5. Step 5: Solve for x
    x = 2,260,247,406,726,522/72,035,349.50
  6. Step 6: Final answer
    x = 31,376,920.11

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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.