Home / 28,465,035.95-39,281,768.15-15,412,303.71

Finding the Fourth Proportional to 28,465,035.95, 39,281,768.15 and 15,412,303.71

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Solution

The fourth proportional to 28,465,035.95, 39,281,768.15 and 15,412,303.71 is: 21,268,989.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,465,035.95 : 39,281,768.15 = 15,412,303.71 : x
  2. Step 2: Convert to fraction form
    28,465,035.95/39,281,768.15 = 15,412,303.71/x
  3. Step 3: Cross multiply
    28,465,035.95x = 39,281,768.15 × 15,412,303.71
  4. Step 4: Simplify right side
    28,465,035.95x = 605,422,540,916,543.38
  5. Step 5: Solve for x
    x = 605,422,540,916,543.38/28,465,035.95
  6. Step 6: Final answer
    x = 21,268,989.16

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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.