Home / 20,692,654.68-28,553,275.80-11,990,669.16

Finding the Fourth Proportional to 20,692,654.68, 28,553,275.80 and 11,990,669.16

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Solution

The fourth proportional to 20,692,654.68, 28,553,275.80 and 11,990,669.16 is: 16,545,623.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,692,654.68 : 28,553,275.80 = 11,990,669.16 : x
  2. Step 2: Convert to fraction form
    20,692,654.68/28,553,275.80 = 11,990,669.16/x
  3. Step 3: Cross multiply
    20,692,654.68x = 28,553,275.80 × 11,990,669.16
  4. Step 4: Simplify right side
    20,692,654.68x = 342,372,883,552,034.31
  5. Step 5: Solve for x
    x = 342,372,883,552,034.31/20,692,654.68
  6. Step 6: Final answer
    x = 16,545,623.98

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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.