Home / 681,868,818.40-1,021,627,496.40-317,616,095.20

Finding the Fourth Proportional to 681,868,818.40, 1,021,627,496.40 and 317,616,095.20

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Solution

The fourth proportional to 681,868,818.40, 1,021,627,496.40 and 317,616,095.20 is: 475,876,484.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,868,818.40 : 1,021,627,496.40 = 317,616,095.20 : x
  2. Step 2: Convert to fraction form
    681,868,818.40/1,021,627,496.40 = 317,616,095.20/x
  3. Step 3: Cross multiply
    681,868,818.40x = 1,021,627,496.40 × 317,616,095.20
  4. Step 4: Simplify right side
    681,868,818.40x = 324,485,336,155,520,064
  5. Step 5: Solve for x
    x = 324,485,336,155,520,064/681,868,818.40
  6. Step 6: Final answer
    x = 475,876,484.45

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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.