Home / 28,035,587.76-38,691,053.20-15,648,097.86

Finding the Fourth Proportional to 28,035,587.76, 38,691,053.20 and 15,648,097.86

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Solution

The fourth proportional to 28,035,587.76, 38,691,053.20 and 15,648,097.86 is: 21,595,459.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,035,587.76 : 38,691,053.20 = 15,648,097.86 : x
  2. Step 2: Convert to fraction form
    28,035,587.76/38,691,053.20 = 15,648,097.86/x
  3. Step 3: Cross multiply
    28,035,587.76x = 38,691,053.20 × 15,648,097.86
  4. Step 4: Simplify right side
    28,035,587.76x = 605,441,386,780,066.12
  5. Step 5: Solve for x
    x = 605,441,386,780,066.12/28,035,587.76
  6. Step 6: Final answer
    x = 21,595,459.03

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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.