Home / 630,949,658.40-946,424,487.60-372,288,794.40

Finding the Fourth Proportional to 630,949,658.40, 946,424,487.60 and 372,288,794.40

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Solution

The fourth proportional to 630,949,658.40, 946,424,487.60 and 372,288,794.40 is: 558,433,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,949,658.40 : 946,424,487.60 = 372,288,794.40 : x
  2. Step 2: Convert to fraction form
    630,949,658.40/946,424,487.60 = 372,288,794.40/x
  3. Step 3: Cross multiply
    630,949,658.40x = 946,424,487.60 × 372,288,794.40
  4. Step 4: Simplify right side
    630,949,658.40x = 352,343,231,479,241,728
  5. Step 5: Solve for x
    x = 352,343,231,479,241,728/630,949,658.40
  6. Step 6: Final answer
    x = 558,433,191.60

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Double scale
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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.