Home / 687,702,995.90-1,031,554,493.85-624,213,511.10

Finding the Fourth Proportional to 687,702,995.90, 1,031,554,493.85 and 624,213,511.10

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Solution

The fourth proportional to 687,702,995.90, 1,031,554,493.85 and 624,213,511.10 is: 936,320,266.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,702,995.90 : 1,031,554,493.85 = 624,213,511.10 : x
  2. Step 2: Convert to fraction form
    687,702,995.90/1,031,554,493.85 = 624,213,511.10/x
  3. Step 3: Cross multiply
    687,702,995.90x = 1,031,554,493.85 × 624,213,511.10
  4. Step 4: Simplify right side
    687,702,995.90x = 643,910,252,497,091,840
  5. Step 5: Solve for x
    x = 643,910,252,497,091,840/687,702,995.90
  6. Step 6: Final answer
    x = 936,320,266.65

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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.