Home / 83,657,987.84-115,429,107.60-50,617,415.20

Finding the Fourth Proportional to 83,657,987.84, 115,429,107.60 and 50,617,415.20

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Solution

The fourth proportional to 83,657,987.84, 115,429,107.60 and 50,617,415.20 is: 69,840,588.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,657,987.84 : 115,429,107.60 = 50,617,415.20 : x
  2. Step 2: Convert to fraction form
    83,657,987.84/115,429,107.60 = 50,617,415.20/x
  3. Step 3: Cross multiply
    83,657,987.84x = 115,429,107.60 × 50,617,415.20
  4. Step 4: Simplify right side
    83,657,987.84x = 5,842,723,065,554,676
  5. Step 5: Solve for x
    x = 5,842,723,065,554,676/83,657,987.84
  6. Step 6: Final answer
    x = 69,840,588.05

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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.