Home / 15,036,925.95-20,750,978.29-8,161,408.35

Finding the Fourth Proportional to 15,036,925.95, 20,750,978.29 and 8,161,408.35

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Solution

The fourth proportional to 15,036,925.95, 20,750,978.29 and 8,161,408.35 is: 11,262,754.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,036,925.95 : 20,750,978.29 = 8,161,408.35 : x
  2. Step 2: Convert to fraction form
    15,036,925.95/20,750,978.29 = 8,161,408.35/x
  3. Step 3: Cross multiply
    15,036,925.95x = 20,750,978.29 × 8,161,408.35
  4. Step 4: Simplify right side
    15,036,925.95x = 169,357,207,558,955.69
  5. Step 5: Solve for x
    x = 169,357,207,558,955.69/15,036,925.95
  6. Step 6: Final answer
    x = 11,262,754.64

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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.