Home / 315,525,787.20-473,288,680.80-145,656,475.20

Finding the Fourth Proportional to 315,525,787.20, 473,288,680.80 and 145,656,475.20

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Solution

The fourth proportional to 315,525,787.20, 473,288,680.80 and 145,656,475.20 is: 218,484,712.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,525,787.20 : 473,288,680.80 = 145,656,475.20 : x
  2. Step 2: Convert to fraction form
    315,525,787.20/473,288,680.80 = 145,656,475.20/x
  3. Step 3: Cross multiply
    315,525,787.20x = 473,288,680.80 × 145,656,475.20
  4. Step 4: Simplify right side
    315,525,787.20x = 68,937,560,997,385,912
  5. Step 5: Solve for x
    x = 68,937,560,997,385,912/315,525,787.20
  6. Step 6: Final answer
    x = 218,484,712.80

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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.