Home / 1,223,929,759.32-1,689,295,680.63-777,806,133.39

Finding the Fourth Proportional to 1,223,929,759.32, 1,689,295,680.63 and 777,806,133.39

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Solution

The fourth proportional to 1,223,929,759.32, 1,689,295,680.63 and 777,806,133.39 is: 1,073,545,709.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,929,759.32 : 1,689,295,680.63 = 777,806,133.39 : x
  2. Step 2: Convert to fraction form
    1,223,929,759.32/1,689,295,680.63 = 777,806,133.39/x
  3. Step 3: Cross multiply
    1,223,929,759.32x = 1,689,295,680.63 × 777,806,133.39
  4. Step 4: Simplify right side
    1,223,929,759.32x = 1,313,944,541,503,248,640
  5. Step 5: Solve for x
    x = 1,313,944,541,503,248,640/1,223,929,759.32
  6. Step 6: Final answer
    x = 1,073,545,709.22

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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.