Home / 103,429,797.36-142,734,219.84-57,021,713.52

Finding the Fourth Proportional to 103,429,797.36, 142,734,219.84 and 57,021,713.52

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Solution

The fourth proportional to 103,429,797.36, 142,734,219.84 and 57,021,713.52 is: 78,690,570.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,429,797.36 : 142,734,219.84 = 57,021,713.52 : x
  2. Step 2: Convert to fraction form
    103,429,797.36/142,734,219.84 = 57,021,713.52/x
  3. Step 3: Cross multiply
    103,429,797.36x = 142,734,219.84 × 57,021,713.52
  4. Step 4: Simplify right side
    103,429,797.36x = 8,138,949,793,217,181
  5. Step 5: Solve for x
    x = 8,138,949,793,217,181/103,429,797.36
  6. Step 6: Final answer
    x = 78,690,570.81

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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.