Home / 315,145,280.80-472,717,921.20-310,840,608.70

Finding the Fourth Proportional to 315,145,280.80, 472,717,921.20 and 310,840,608.70

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Solution

The fourth proportional to 315,145,280.80, 472,717,921.20 and 310,840,608.70 is: 466,260,913.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,145,280.80 : 472,717,921.20 = 310,840,608.70 : x
  2. Step 2: Convert to fraction form
    315,145,280.80/472,717,921.20 = 310,840,608.70/x
  3. Step 3: Cross multiply
    315,145,280.80x = 472,717,921.20 × 310,840,608.70
  4. Step 4: Simplify right side
    315,145,280.80x = 146,939,926,369,206,624
  5. Step 5: Solve for x
    x = 146,939,926,369,206,624/315,145,280.80
  6. Step 6: Final answer
    x = 466,260,913.05

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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.