Home / 910,700,976.91-1,256,767,768.61-493,013,262.22

Finding the Fourth Proportional to 910,700,976.91, 1,256,767,768.61 and 493,013,262.22

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Solution

The fourth proportional to 910,700,976.91, 1,256,767,768.61 and 493,013,262.22 is: 680,358,529.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,700,976.91 : 1,256,767,768.61 = 493,013,262.22 : x
  2. Step 2: Convert to fraction form
    910,700,976.91/1,256,767,768.61 = 493,013,262.22/x
  3. Step 3: Cross multiply
    910,700,976.91x = 1,256,767,768.61 × 493,013,262.22
  4. Step 4: Simplify right side
    910,700,976.91x = 619,603,177,455,366,144
  5. Step 5: Solve for x
    x = 619,603,177,455,366,144/910,700,976.91
  6. Step 6: Final answer
    x = 680,358,529.49

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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.