Home / 103,615,845.45-142,987,020.71-57,205,256.01

Finding the Fourth Proportional to 103,615,845.45, 142,987,020.71 and 57,205,256.01

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Solution

The fourth proportional to 103,615,845.45, 142,987,020.71 and 57,205,256.01 is: 78,941,682.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,615,845.45 : 142,987,020.71 = 57,205,256.01 : x
  2. Step 2: Convert to fraction form
    103,615,845.45/142,987,020.71 = 57,205,256.01/x
  3. Step 3: Cross multiply
    103,615,845.45x = 142,987,020.71 × 57,205,256.01
  4. Step 4: Simplify right side
    103,615,845.45x = 8,179,609,125,536,696
  5. Step 5: Solve for x
    x = 8,179,609,125,536,696/103,615,845.45
  6. Step 6: Final answer
    x = 78,941,682.04

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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.