Home / 207,782,439.90-311,468,081.85-98,415,381.30

Finding the Fourth Proportional to 207,782,439.90, 311,468,081.85 and 98,415,381.30

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Solution

The fourth proportional to 207,782,439.90, 311,468,081.85 and 98,415,381.30 is: 147,525,700.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,782,439.90 : 311,468,081.85 = 98,415,381.30 : x
  2. Step 2: Convert to fraction form
    207,782,439.90/311,468,081.85 = 98,415,381.30/x
  3. Step 3: Cross multiply
    207,782,439.90x = 311,468,081.85 × 98,415,381.30
  4. Step 4: Simplify right side
    207,782,439.90x = 30,653,250,038,047,360
  5. Step 5: Solve for x
    x = 30,653,250,038,047,360/207,782,439.90
  6. Step 6: Final answer
    x = 147,525,700.69

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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.