Home / 28,731,223.57-39,649,925.85-15,679,323.18

Finding the Fourth Proportional to 28,731,223.57, 39,649,925.85 and 15,679,323.18

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Solution

The fourth proportional to 28,731,223.57, 39,649,925.85 and 15,679,323.18 is: 21,637,922.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731,223.57 : 39,649,925.85 = 15,679,323.18 : x
  2. Step 2: Convert to fraction form
    28,731,223.57/39,649,925.85 = 15,679,323.18/x
  3. Step 3: Cross multiply
    28,731,223.57x = 39,649,925.85 × 15,679,323.18
  4. Step 4: Simplify right side
    28,731,223.57x = 621,684,001,465,186.25
  5. Step 5: Solve for x
    x = 621,684,001,465,186.25/28,731,223.57
  6. Step 6: Final answer
    x = 21,637,922.94

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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.