Home / 28,459,087.16-39,273,552.96-15,406,345.65

Finding the Fourth Proportional to 28,459,087.16, 39,273,552.96 and 15,406,345.65

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Solution

The fourth proportional to 28,459,087.16, 39,273,552.96 and 15,406,345.65 is: 21,260,763.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,459,087.16 : 39,273,552.96 = 15,406,345.65 : x
  2. Step 2: Convert to fraction form
    28,459,087.16/39,273,552.96 = 15,406,345.65/x
  3. Step 3: Cross multiply
    28,459,087.16x = 39,273,552.96 × 15,406,345.65
  4. Step 4: Simplify right side
    28,459,087.16x = 605,061,931,728,308.88
  5. Step 5: Solve for x
    x = 605,061,931,728,308.88/28,459,087.16
  6. Step 6: Final answer
    x = 21,260,763.86

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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.