Home / 83,343,467.10-125,015,200.65-78,666,786.30

Finding the Fourth Proportional to 83,343,467.10, 125,015,200.65 and 78,666,786.30

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Solution

The fourth proportional to 83,343,467.10, 125,015,200.65 and 78,666,786.30 is: 118,000,179.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,343,467.10 : 125,015,200.65 = 78,666,786.30 : x
  2. Step 2: Convert to fraction form
    83,343,467.10/125,015,200.65 = 78,666,786.30/x
  3. Step 3: Cross multiply
    83,343,467.10x = 125,015,200.65 × 78,666,786.30
  4. Step 4: Simplify right side
    83,343,467.10x = 9,834,544,073,785,172
  5. Step 5: Solve for x
    x = 9,834,544,073,785,172/83,343,467.10
  6. Step 6: Final answer
    x = 118,000,179.45

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1.5x scale

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.