Home / 83,030,947.20-124,546,420.80-39,889,747.80

Finding the Fourth Proportional to 83,030,947.20, 124,546,420.80 and 39,889,747.80

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Solution

The fourth proportional to 83,030,947.20, 124,546,420.80 and 39,889,747.80 is: 59,834,621.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,030,947.20 : 124,546,420.80 = 39,889,747.80 : x
  2. Step 2: Convert to fraction form
    83,030,947.20/124,546,420.80 = 39,889,747.80/x
  3. Step 3: Cross multiply
    83,030,947.20x = 124,546,420.80 × 39,889,747.80
  4. Step 4: Simplify right side
    83,030,947.20x = 4,968,125,315,104,674
  5. Step 5: Solve for x
    x = 4,968,125,315,104,674/83,030,947.20
  6. Step 6: Final answer
    x = 59,834,621.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.