Home / 315,219,818.70-472,829,728.05-194,287,466.70

Finding the Fourth Proportional to 315,219,818.70, 472,829,728.05 and 194,287,466.70

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Solution

The fourth proportional to 315,219,818.70, 472,829,728.05 and 194,287,466.70 is: 291,431,200.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,219,818.70 : 472,829,728.05 = 194,287,466.70 : x
  2. Step 2: Convert to fraction form
    315,219,818.70/472,829,728.05 = 194,287,466.70/x
  3. Step 3: Cross multiply
    315,219,818.70x = 472,829,728.05 × 194,287,466.70
  4. Step 4: Simplify right side
    315,219,818.70x = 91,864,890,043,284,432
  5. Step 5: Solve for x
    x = 91,864,890,043,284,432/315,219,818.70
  6. Step 6: Final answer
    x = 291,431,200.05

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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.