Home / 910,700,913.07-1,256,767,680.52-493,013,198.38

Finding the Fourth Proportional to 910,700,913.07, 1,256,767,680.52 and 493,013,198.38

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Solution

The fourth proportional to 910,700,913.07, 1,256,767,680.52 and 493,013,198.38 is: 680,358,441.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,700,913.07 : 1,256,767,680.52 = 493,013,198.38 : x
  2. Step 2: Convert to fraction form
    910,700,913.07/1,256,767,680.52 = 493,013,198.38/x
  3. Step 3: Cross multiply
    910,700,913.07x = 1,256,767,680.52 × 493,013,198.38
  4. Step 4: Simplify right side
    910,700,913.07x = 619,603,053,787,495,424
  5. Step 5: Solve for x
    x = 619,603,053,787,495,424/910,700,913.07
  6. Step 6: Final answer
    x = 680,358,441.39

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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.