Home / 826,042,669.87-1,139,897,880.78-454,756,729.63

Finding the Fourth Proportional to 826,042,669.87, 1,139,897,880.78 and 454,756,729.63

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Solution

The fourth proportional to 826,042,669.87, 1,139,897,880.78 and 454,756,729.63 is: 627,541,713.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,042,669.87 : 1,139,897,880.78 = 454,756,729.63 : x
  2. Step 2: Convert to fraction form
    826,042,669.87/1,139,897,880.78 = 454,756,729.63/x
  3. Step 3: Cross multiply
    826,042,669.87x = 1,139,897,880.78 × 454,756,729.63
  4. Step 4: Simplify right side
    826,042,669.87x = 518,376,232,375,680,384
  5. Step 5: Solve for x
    x = 518,376,232,375,680,384/826,042,669.87
  6. Step 6: Final answer
    x = 627,541,713.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.