Home / 28,677,731.66-43,016,558.25-13,316,621.42

Finding the Fourth Proportional to 28,677,731.66, 43,016,558.25 and 13,316,621.42

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Solution

The fourth proportional to 28,677,731.66, 43,016,558.25 and 13,316,621.42 is: 19,974,913.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,677,731.66 : 43,016,558.25 = 13,316,621.42 : x
  2. Step 2: Convert to fraction form
    28,677,731.66/43,016,558.25 = 13,316,621.42/x
  3. Step 3: Cross multiply
    28,677,731.66x = 43,016,558.25 × 13,316,621.42
  4. Step 4: Simplify right side
    28,677,731.66x = 572,835,221,006,627.75
  5. Step 5: Solve for x
    x = 572,835,221,006,627.75/28,677,731.66
  6. Step 6: Final answer
    x = 19,974,913.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.