Home / 81,338,970.80-112,206,273.76-51,939,392.24

Finding the Fourth Proportional to 81,338,970.80, 112,206,273.76 and 51,939,392.24

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Solution

The fourth proportional to 81,338,970.80, 112,206,273.76 and 51,939,392.24 is: 71,649,857.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,338,970.80 : 112,206,273.76 = 51,939,392.24 : x
  2. Step 2: Convert to fraction form
    81,338,970.80/112,206,273.76 = 51,939,392.24/x
  3. Step 3: Cross multiply
    81,338,970.80x = 112,206,273.76 × 51,939,392.24
  4. Step 4: Simplify right side
    81,338,970.80x = 5,827,925,664,609,460
  5. Step 5: Solve for x
    x = 5,827,925,664,609,460/81,338,970.80
  6. Step 6: Final answer
    x = 71,649,857.47

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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.