Home / 756,680,802.30-1,135,021,203.45-408,002,362.20

Finding the Fourth Proportional to 756,680,802.30, 1,135,021,203.45 and 408,002,362.20

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Solution

The fourth proportional to 756,680,802.30, 1,135,021,203.45 and 408,002,362.20 is: 612,003,543.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,680,802.30 : 1,135,021,203.45 = 408,002,362.20 : x
  2. Step 2: Convert to fraction form
    756,680,802.30/1,135,021,203.45 = 408,002,362.20/x
  3. Step 3: Cross multiply
    756,680,802.30x = 1,135,021,203.45 × 408,002,362.20
  4. Step 4: Simplify right side
    756,680,802.30x = 463,091,332,154,686,784
  5. Step 5: Solve for x
    x = 463,091,332,154,686,784/756,680,802.30
  6. Step 6: Final answer
    x = 612,003,543.30

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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.