Home / 31,835,854.20-43,966,827.90-21,938,470.68

Finding the Fourth Proportional to 31,835,854.20, 43,966,827.90 and 21,938,470.68

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Solution

The fourth proportional to 31,835,854.20, 43,966,827.90 and 21,938,470.68 is: 30,298,070.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,835,854.20 : 43,966,827.90 = 21,938,470.68 : x
  2. Step 2: Convert to fraction form
    31,835,854.20/43,966,827.90 = 21,938,470.68/x
  3. Step 3: Cross multiply
    31,835,854.20x = 43,966,827.90 × 21,938,470.68
  4. Step 4: Simplify right side
    31,835,854.20x = 964,564,964,776,755.88
  5. Step 5: Solve for x
    x = 964,564,964,776,755.88/31,835,854.20
  6. Step 6: Final answer
    x = 30,298,070.81

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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.