Home / 72,641,840.40-108,963,154.26-21,524,302.08

Finding the Fourth Proportional to 72,641,840.40, 108,963,154.26 and 21,524,302.08

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Solution

The fourth proportional to 72,641,840.40, 108,963,154.26 and 21,524,302.08 is: 32,286,569.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,641,840.40 : 108,963,154.26 = 21,524,302.08 : x
  2. Step 2: Convert to fraction form
    72,641,840.40/108,963,154.26 = 21,524,302.08/x
  3. Step 3: Cross multiply
    72,641,840.40x = 108,963,154.26 × 21,524,302.08
  4. Step 4: Simplify right side
    72,641,840.40x = 2,345,355,847,881,879
  5. Step 5: Solve for x
    x = 2,345,355,847,881,879/72,641,840.40
  6. Step 6: Final answer
    x = 32,286,569.76

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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.