Home / 205,959,009.60-308,938,514.40-124,170,239.70

Finding the Fourth Proportional to 205,959,009.60, 308,938,514.40 and 124,170,239.70

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Solution

The fourth proportional to 205,959,009.60, 308,938,514.40 and 124,170,239.70 is: 186,255,359.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,959,009.60 : 308,938,514.40 = 124,170,239.70 : x
  2. Step 2: Convert to fraction form
    205,959,009.60/308,938,514.40 = 124,170,239.70/x
  3. Step 3: Cross multiply
    205,959,009.60x = 308,938,514.40 × 124,170,239.70
  4. Step 4: Simplify right side
    205,959,009.60x = 38,360,969,385,609,896
  5. Step 5: Solve for x
    x = 38,360,969,385,609,896/205,959,009.60
  6. Step 6: Final answer
    x = 186,255,359.55

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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.