Home / 21,152,991.13-31,732,309.97-8,370,506.48

Finding the Fourth Proportional to 21,152,991.13, 31,732,309.97 and 8,370,506.48

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Solution

The fourth proportional to 21,152,991.13, 31,732,309.97 and 8,370,506.48 is: 12,556,876.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,152,991.13 : 31,732,309.97 = 8,370,506.48 : x
  2. Step 2: Convert to fraction form
    21,152,991.13/31,732,309.97 = 8,370,506.48/x
  3. Step 3: Cross multiply
    21,152,991.13x = 31,732,309.97 × 8,370,506.48
  4. Step 4: Simplify right side
    21,152,991.13x = 265,615,506,060,128.91
  5. Step 5: Solve for x
    x = 265,615,506,060,128.91/21,152,991.13
  6. Step 6: Final answer
    x = 12,556,876.92

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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.