Home / 910,700,911.70-1,256,767,678.62-493,013,197

Finding the Fourth Proportional to 910,700,911.70, 1,256,767,678.62 and 493,013,197

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Solution

The fourth proportional to 910,700,911.70, 1,256,767,678.62 and 493,013,197 is: 680,358,439.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,700,911.70 : 1,256,767,678.62 = 493,013,197 : x
  2. Step 2: Convert to fraction form
    910,700,911.70/1,256,767,678.62 = 493,013,197/x
  3. Step 3: Cross multiply
    910,700,911.70x = 1,256,767,678.62 × 493,013,197
  4. Step 4: Simplify right side
    910,700,911.70x = 619,603,051,122,714,752
  5. Step 5: Solve for x
    x = 619,603,051,122,714,752/910,700,911.70
  6. Step 6: Final answer
    x = 680,358,439.49

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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.