Home / 28,068,290.49-38,772,152.46-21,151,253.66

Finding the Fourth Proportional to 28,068,290.49, 38,772,152.46 and 21,151,253.66

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Solution

The fourth proportional to 28,068,290.49, 38,772,152.46 and 21,151,253.66 is: 29,217,298.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,068,290.49 : 38,772,152.46 = 21,151,253.66 : x
  2. Step 2: Convert to fraction form
    28,068,290.49/38,772,152.46 = 21,151,253.66/x
  3. Step 3: Cross multiply
    28,068,290.49x = 38,772,152.46 × 21,151,253.66
  4. Step 4: Simplify right side
    28,068,290.49x = 820,079,631,625,653
  5. Step 5: Solve for x
    x = 820,079,631,625,653/28,068,290.49
  6. Step 6: Final answer
    x = 29,217,298.86

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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.