Home / 28,731,228.39-39,649,932.51-15,679,327.98

Finding the Fourth Proportional to 28,731,228.39, 39,649,932.51 and 15,679,327.98

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Solution

The fourth proportional to 28,731,228.39, 39,649,932.51 and 15,679,327.98 is: 21,637,929.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731,228.39 : 39,649,932.51 = 15,679,327.98 : x
  2. Step 2: Convert to fraction form
    28,731,228.39/39,649,932.51 = 15,679,327.98/x
  3. Step 3: Cross multiply
    28,731,228.39x = 39,649,932.51 × 15,679,327.98
  4. Step 4: Simplify right side
    28,731,228.39x = 621,684,296,209,154.62
  5. Step 5: Solve for x
    x = 621,684,296,209,154.62/28,731,228.39
  6. Step 6: Final answer
    x = 21,637,929.56

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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.