Home / 28,791,053.64-39,731,656.95-15,738,365.70

Finding the Fourth Proportional to 28,791,053.64, 39,731,656.95 and 15,738,365.70

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Solution

The fourth proportional to 28,791,053.64, 39,731,656.95 and 15,738,365.70 is: 21,718,946.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,791,053.64 : 39,731,656.95 = 15,738,365.70 : x
  2. Step 2: Convert to fraction form
    28,791,053.64/39,731,656.95 = 15,738,365.70/x
  3. Step 3: Cross multiply
    28,791,053.64x = 39,731,656.95 × 15,738,365.70
  4. Step 4: Simplify right side
    28,791,053.64x = 625,311,346,946,046.62
  5. Step 5: Solve for x
    x = 625,311,346,946,046.62/28,791,053.64
  6. Step 6: Final answer
    x = 21,718,946.27

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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.