Home / 103,878,418.92-143,352,357.66-56,839,911.72

Finding the Fourth Proportional to 103,878,418.92, 143,352,357.66 and 56,839,911.72

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Solution

The fourth proportional to 103,878,418.92, 143,352,357.66 and 56,839,911.72 is: 78,439,154.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,878,418.92 : 143,352,357.66 = 56,839,911.72 : x
  2. Step 2: Convert to fraction form
    103,878,418.92/143,352,357.66 = 56,839,911.72/x
  3. Step 3: Cross multiply
    103,878,418.92x = 143,352,357.66 × 56,839,911.72
  4. Step 4: Simplify right side
    103,878,418.92x = 8,148,135,354,248,265
  5. Step 5: Solve for x
    x = 8,148,135,354,248,265/103,878,418.92
  6. Step 6: Final answer
    x = 78,439,154.53

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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.