Home / 314,813,872.80-472,220,809.20-161,758,864.80

Finding the Fourth Proportional to 314,813,872.80, 472,220,809.20 and 161,758,864.80

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Solution

The fourth proportional to 314,813,872.80, 472,220,809.20 and 161,758,864.80 is: 242,638,297.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,813,872.80 : 472,220,809.20 = 161,758,864.80 : x
  2. Step 2: Convert to fraction form
    314,813,872.80/472,220,809.20 = 161,758,864.80/x
  3. Step 3: Cross multiply
    314,813,872.80x = 472,220,809.20 × 161,758,864.80
  4. Step 4: Simplify right side
    314,813,872.80x = 76,385,902,031,129,392
  5. Step 5: Solve for x
    x = 76,385,902,031,129,392/314,813,872.80
  6. Step 6: Final answer
    x = 242,638,297.20

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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.