Home / 720,767,042.64-994,620,216.60-407,482,529.40

Finding the Fourth Proportional to 720,767,042.64, 994,620,216.60 and 407,482,529.40

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Solution

The fourth proportional to 720,767,042.64, 994,620,216.60 and 407,482,529.40 is: 562,304,236.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,767,042.64 : 994,620,216.60 = 407,482,529.40 : x
  2. Step 2: Convert to fraction form
    720,767,042.64/994,620,216.60 = 407,482,529.40/x
  3. Step 3: Cross multiply
    720,767,042.64x = 994,620,216.60 × 407,482,529.40
  4. Step 4: Simplify right side
    720,767,042.64x = 405,290,361,652,543,872
  5. Step 5: Solve for x
    x = 405,290,361,652,543,872/720,767,042.64
  6. Step 6: Final answer
    x = 562,304,236.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.