Home / 28,371,126.30-42,556,689.45-19,711,772.70

Finding the Fourth Proportional to 28,371,126.30, 42,556,689.45 and 19,711,772.70

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Solution

The fourth proportional to 28,371,126.30, 42,556,689.45 and 19,711,772.70 is: 29,567,659.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371,126.30 : 42,556,689.45 = 19,711,772.70 : x
  2. Step 2: Convert to fraction form
    28,371,126.30/42,556,689.45 = 19,711,772.70/x
  3. Step 3: Cross multiply
    28,371,126.30x = 42,556,689.45 × 19,711,772.70
  4. Step 4: Simplify right side
    28,371,126.30x = 838,867,789,302,888
  5. Step 5: Solve for x
    x = 838,867,789,302,888/28,371,126.30
  6. Step 6: Final answer
    x = 29,567,659.05

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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.