Home / 79,043,437.50-109,079,943.75-42,867,565.50

Finding the Fourth Proportional to 79,043,437.50, 109,079,943.75 and 42,867,565.50

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Solution

The fourth proportional to 79,043,437.50, 109,079,943.75 and 42,867,565.50 is: 59,157,240.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,043,437.50 : 109,079,943.75 = 42,867,565.50 : x
  2. Step 2: Convert to fraction form
    79,043,437.50/109,079,943.75 = 42,867,565.50/x
  3. Step 3: Cross multiply
    79,043,437.50x = 109,079,943.75 × 42,867,565.50
  4. Step 4: Simplify right side
    79,043,437.50x = 4,675,991,633,439,441
  5. Step 5: Solve for x
    x = 4,675,991,633,439,441/79,043,437.50
  6. Step 6: Final answer
    x = 59,157,240.39

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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.