Home / 315,202,217.40-472,405,194.90-153,295,529.40

Finding the Fourth Proportional to 315,202,217.40, 472,405,194.90 and 153,295,529.40

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Solution

The fourth proportional to 315,202,217.40, 472,405,194.90 and 153,295,529.40 is: 229,749,666.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,202,217.40 : 472,405,194.90 = 153,295,529.40 : x
  2. Step 2: Convert to fraction form
    315,202,217.40/472,405,194.90 = 153,295,529.40/x
  3. Step 3: Cross multiply
    315,202,217.40x = 472,405,194.90 × 153,295,529.40
  4. Step 4: Simplify right side
    315,202,217.40x = 72,417,604,443,505,680
  5. Step 5: Solve for x
    x = 72,417,604,443,505,680/315,202,217.40
  6. Step 6: Final answer
    x = 229,749,666.87

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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.