Home / 778,483,721.88-1,068,585,006.27-688,404,049.56

Finding the Fourth Proportional to 778,483,721.88, 1,068,585,006.27 and 688,404,049.56

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Solution

The fourth proportional to 778,483,721.88, 1,068,585,006.27 and 688,404,049.56 is: 944,937,222.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,483,721.88 : 1,068,585,006.27 = 688,404,049.56 : x
  2. Step 2: Convert to fraction form
    778,483,721.88/1,068,585,006.27 = 688,404,049.56/x
  3. Step 3: Cross multiply
    778,483,721.88x = 1,068,585,006.27 × 688,404,049.56
  4. Step 4: Simplify right side
    778,483,721.88x = 735,618,245,615,365,888
  5. Step 5: Solve for x
    x = 735,618,245,615,365,888/778,483,721.88
  6. Step 6: Final answer
    x = 944,937,222.12

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.