Home / 708,590,469.80-1,062,885,704.70-643,967,244.20

Finding the Fourth Proportional to 708,590,469.80, 1,062,885,704.70 and 643,967,244.20

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Solution

The fourth proportional to 708,590,469.80, 1,062,885,704.70 and 643,967,244.20 is: 965,950,866.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,590,469.80 : 1,062,885,704.70 = 643,967,244.20 : x
  2. Step 2: Convert to fraction form
    708,590,469.80/1,062,885,704.70 = 643,967,244.20/x
  3. Step 3: Cross multiply
    708,590,469.80x = 1,062,885,704.70 × 643,967,244.20
  4. Step 4: Simplify right side
    708,590,469.80x = 684,463,578,155,234,048
  5. Step 5: Solve for x
    x = 684,463,578,155,234,048/708,590,469.80
  6. Step 6: Final answer
    x = 965,950,866.30

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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.