Home / 20,577,384.81-28,392,769.49-12,203,203.86

Finding the Fourth Proportional to 20,577,384.81, 28,392,769.49 and 12,203,203.86

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Solution

The fourth proportional to 20,577,384.81, 28,392,769.49 and 12,203,203.86 is: 16,838,036.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577,384.81 : 28,392,769.49 = 12,203,203.86 : x
  2. Step 2: Convert to fraction form
    20,577,384.81/28,392,769.49 = 12,203,203.86/x
  3. Step 3: Cross multiply
    20,577,384.81x = 28,392,769.49 × 12,203,203.86
  4. Step 4: Simplify right side
    20,577,384.81x = 346,482,754,175,442.19
  5. Step 5: Solve for x
    x = 346,482,754,175,442.19/20,577,384.81
  6. Step 6: Final answer
    x = 16,838,036.39

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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.