Home / 72,775,479.57-100,431,560.15-39,737,038.16

Finding the Fourth Proportional to 72,775,479.57, 100,431,560.15 and 39,737,038.16

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Solution

The fourth proportional to 72,775,479.57, 100,431,560.15 and 39,737,038.16 is: 54,837,876.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,775,479.57 : 100,431,560.15 = 39,737,038.16 : x
  2. Step 2: Convert to fraction form
    72,775,479.57/100,431,560.15 = 39,737,038.16/x
  3. Step 3: Cross multiply
    72,775,479.57x = 100,431,560.15 × 39,737,038.16
  4. Step 4: Simplify right side
    72,775,479.57x = 3,990,852,738,148,885
  5. Step 5: Solve for x
    x = 3,990,852,738,148,885/72,775,479.57
  6. Step 6: Final answer
    x = 54,837,876.19

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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.