Home / 981,356,022.60-1,470,783,653.10-521,514,486.60

Finding the Fourth Proportional to 981,356,022.60, 1,470,783,653.10 and 521,514,486.60

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Solution

The fourth proportional to 981,356,022.60, 1,470,783,653.10 and 521,514,486.60 is: 781,607,249.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,356,022.60 : 1,470,783,653.10 = 521,514,486.60 : x
  2. Step 2: Convert to fraction form
    981,356,022.60/1,470,783,653.10 = 521,514,486.60/x
  3. Step 3: Cross multiply
    981,356,022.60x = 1,470,783,653.10 × 521,514,486.60
  4. Step 4: Simplify right side
    981,356,022.60x = 767,034,981,746,119,040
  5. Step 5: Solve for x
    x = 767,034,981,746,119,040/981,356,022.60
  6. Step 6: Final answer
    x = 781,607,249.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.