Home / 71,280,316.28-98,366,877.38-38,685,268.28

Finding the Fourth Proportional to 71,280,316.28, 98,366,877.38 and 38,685,268.28

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Solution

The fourth proportional to 71,280,316.28, 98,366,877.38 and 38,685,268.28 is: 53,385,692.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,280,316.28 : 98,366,877.38 = 38,685,268.28 : x
  2. Step 2: Convert to fraction form
    71,280,316.28/98,366,877.38 = 38,685,268.28/x
  3. Step 3: Cross multiply
    71,280,316.28x = 98,366,877.38 × 38,685,268.28
  4. Step 4: Simplify right side
    71,280,316.28x = 3,805,349,041,311,163.50
  5. Step 5: Solve for x
    x = 3,805,349,041,311,163.50/71,280,316.28
  6. Step 6: Final answer
    x = 53,385,692.43

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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.