Home / 720,642,481,469.28-994,420,892,302.20-427,616,904,269.16

Finding the Fourth Proportional to 720,642,481,469.28, 994,420,892,302.20 and 427,616,904,269.16

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Solution

The fourth proportional to 720,642,481,469.28, 994,420,892,302.20 and 427,616,904,269.16 is: 590,072,323,574.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,642,481,469.28 : 994,420,892,302.20 = 427,616,904,269.16 : x
  2. Step 2: Convert to fraction form
    720,642,481,469.28/994,420,892,302.20 = 427,616,904,269.16/x
  3. Step 3: Cross multiply
    720,642,481,469.28x = 994,420,892,302.20 × 427,616,904,269.16
  4. Step 4: Simplify right side
    720,642,481,469.28x = 425,231,183,506,842,501,251,072
  5. Step 5: Solve for x
    x = 425,231,183,506,842,501,251,072/720,642,481,469.28
  6. Step 6: Final answer
    x = 590,072,323,574.18

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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.