Home / 72,115,705.90-99,524,724.81-40,756,653.04

Finding the Fourth Proportional to 72,115,705.90, 99,524,724.81 and 40,756,653.04

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Solution

The fourth proportional to 72,115,705.90, 99,524,724.81 and 40,756,653.04 is: 56,247,035.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,115,705.90 : 99,524,724.81 = 40,756,653.04 : x
  2. Step 2: Convert to fraction form
    72,115,705.90/99,524,724.81 = 40,756,653.04/x
  3. Step 3: Cross multiply
    72,115,705.90x = 99,524,724.81 × 40,756,653.04
  4. Step 4: Simplify right side
    72,115,705.90x = 4,056,294,677,815,502.50
  5. Step 5: Solve for x
    x = 4,056,294,677,815,502.50/72,115,705.90
  6. Step 6: Final answer
    x = 56,247,035.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.