Home / 910,700,910.57-1,256,767,677.07-493,013,195.87

Finding the Fourth Proportional to 910,700,910.57, 1,256,767,677.07 and 493,013,195.87

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Solution

The fourth proportional to 910,700,910.57, 1,256,767,677.07 and 493,013,195.87 is: 680,358,437.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,700,910.57 : 1,256,767,677.07 = 493,013,195.87 : x
  2. Step 2: Convert to fraction form
    910,700,910.57/1,256,767,677.07 = 493,013,195.87/x
  3. Step 3: Cross multiply
    910,700,910.57x = 1,256,767,677.07 × 493,013,195.87
  4. Step 4: Simplify right side
    910,700,910.57x = 619,603,048,940,306,304
  5. Step 5: Solve for x
    x = 619,603,048,940,306,304/910,700,910.57
  6. Step 6: Final answer
    x = 680,358,437.93

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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.