Home / 470,505,787.20-705,758,680.80-163,695,931.20

Finding the Fourth Proportional to 470,505,787.20, 705,758,680.80 and 163,695,931.20

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Solution

The fourth proportional to 470,505,787.20, 705,758,680.80 and 163,695,931.20 is: 245,543,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,505,787.20 : 705,758,680.80 = 163,695,931.20 : x
  2. Step 2: Convert to fraction form
    470,505,787.20/705,758,680.80 = 163,695,931.20/x
  3. Step 3: Cross multiply
    470,505,787.20x = 705,758,680.80 × 163,695,931.20
  4. Step 4: Simplify right side
    470,505,787.20x = 115,529,824,456,039,552
  5. Step 5: Solve for x
    x = 115,529,824,456,039,552/470,505,787.20
  6. Step 6: Final answer
    x = 245,543,896.80

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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.