Home / 72,290,762.65-108,520,124.78-43,569,329.05

Finding the Fourth Proportional to 72,290,762.65, 108,520,124.78 and 43,569,329.05

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Solution

The fourth proportional to 72,290,762.65, 108,520,124.78 and 43,569,329.05 is: 65,404,608.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,290,762.65 : 108,520,124.78 = 43,569,329.05 : x
  2. Step 2: Convert to fraction form
    72,290,762.65/108,520,124.78 = 43,569,329.05/x
  3. Step 3: Cross multiply
    72,290,762.65x = 108,520,124.78 × 43,569,329.05
  4. Step 4: Simplify right side
    72,290,762.65x = 4,728,149,024,869,032
  5. Step 5: Solve for x
    x = 4,728,149,024,869,032/72,290,762.65
  6. Step 6: Final answer
    x = 65,404,608.44

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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.