Home / 39,872,095.50-55,023,513.93-21,537,381.18

Finding the Fourth Proportional to 39,872,095.50, 55,023,513.93 and 21,537,381.18

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Solution

The fourth proportional to 39,872,095.50, 55,023,513.93 and 21,537,381.18 is: 29,721,597.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,872,095.50 : 55,023,513.93 = 21,537,381.18 : x
  2. Step 2: Convert to fraction form
    39,872,095.50/55,023,513.93 = 21,537,381.18/x
  3. Step 3: Cross multiply
    39,872,095.50x = 55,023,513.93 × 21,537,381.18
  4. Step 4: Simplify right side
    39,872,095.50x = 1,185,062,393,373,449.75
  5. Step 5: Solve for x
    x = 1,185,062,393,373,449.75/39,872,095.50
  6. Step 6: Final answer
    x = 29,721,597.99

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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.