Home / 28,070,112.87-38,739,006.23-22,316,378.31

Finding the Fourth Proportional to 28,070,112.87, 38,739,006.23 and 22,316,378.31

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Solution

The fourth proportional to 28,070,112.87, 38,739,006.23 and 22,316,378.31 is: 30,798,391.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,070,112.87 : 38,739,006.23 = 22,316,378.31 : x
  2. Step 2: Convert to fraction form
    28,070,112.87/38,739,006.23 = 22,316,378.31/x
  3. Step 3: Cross multiply
    28,070,112.87x = 38,739,006.23 × 22,316,378.31
  4. Step 4: Simplify right side
    28,070,112.87x = 864,514,318,270,545
  5. Step 5: Solve for x
    x = 864,514,318,270,545/28,070,112.87
  6. Step 6: Final answer
    x = 30,798,391.24

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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.