Home / 28,458,965.89-39,273,364.65-15,406,215.22

Finding the Fourth Proportional to 28,458,965.89, 39,273,364.65 and 15,406,215.22

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Solution

The fourth proportional to 28,458,965.89, 39,273,364.65 and 15,406,215.22 is: 21,260,572.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,458,965.89 : 39,273,364.65 = 15,406,215.22 : x
  2. Step 2: Convert to fraction form
    28,458,965.89/39,273,364.65 = 15,406,215.22/x
  3. Step 3: Cross multiply
    28,458,965.89x = 39,273,364.65 × 15,406,215.22
  4. Step 4: Simplify right side
    28,458,965.89x = 605,053,908,211,440
  5. Step 5: Solve for x
    x = 605,053,908,211,440/28,458,965.89
  6. Step 6: Final answer
    x = 21,260,572.52

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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.