Home / 28,101,056.06-38,779,521.86-15,711,591.72

Finding the Fourth Proportional to 28,101,056.06, 38,779,521.86 and 15,711,591.72

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Solution

The fourth proportional to 28,101,056.06, 38,779,521.86 and 15,711,591.72 is: 21,682,032.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,101,056.06 : 38,779,521.86 = 15,711,591.72 : x
  2. Step 2: Convert to fraction form
    28,101,056.06/38,779,521.86 = 15,711,591.72/x
  3. Step 3: Cross multiply
    28,101,056.06x = 38,779,521.86 × 15,711,591.72
  4. Step 4: Simplify right side
    28,101,056.06x = 609,288,014,561,135
  5. Step 5: Solve for x
    x = 609,288,014,561,135/28,101,056.06
  6. Step 6: Final answer
    x = 21,682,032.63

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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.