Home / 74,145,280.80-111,217,921.20-69,106,432.80

Finding the Fourth Proportional to 74,145,280.80, 111,217,921.20 and 69,106,432.80

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Solution

The fourth proportional to 74,145,280.80, 111,217,921.20 and 69,106,432.80 is: 103,659,649.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,145,280.80 : 111,217,921.20 = 69,106,432.80 : x
  2. Step 2: Convert to fraction form
    74,145,280.80/111,217,921.20 = 69,106,432.80/x
  3. Step 3: Cross multiply
    74,145,280.80x = 111,217,921.20 × 69,106,432.80
  4. Step 4: Simplify right side
    74,145,280.80x = 7,685,873,797,563,495
  5. Step 5: Solve for x
    x = 7,685,873,797,563,495/74,145,280.80
  6. Step 6: Final answer
    x = 103,659,649.20

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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.