Home / 687,703,031.40-1,031,554,547.10-624,213,546.60

Finding the Fourth Proportional to 687,703,031.40, 1,031,554,547.10 and 624,213,546.60

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Solution

The fourth proportional to 687,703,031.40, 1,031,554,547.10 and 624,213,546.60 is: 936,320,319.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,703,031.40 : 1,031,554,547.10 = 624,213,546.60 : x
  2. Step 2: Convert to fraction form
    687,703,031.40/1,031,554,547.10 = 624,213,546.60/x
  3. Step 3: Cross multiply
    687,703,031.40x = 1,031,554,547.10 × 624,213,546.60
  4. Step 4: Simplify right side
    687,703,031.40x = 643,910,322,356,647,808
  5. Step 5: Solve for x
    x = 643,910,322,356,647,808/687,703,031.40
  6. Step 6: Final answer
    x = 936,320,319.90

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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.