Home / 2,087,707,820.31-3,132,782,863.79-778,514,332.95

Finding the Fourth Proportional to 2,087,707,820.31, 3,132,782,863.79 and 778,514,332.95

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Solution

The fourth proportional to 2,087,707,820.31, 3,132,782,863.79 and 778,514,332.95 is: 1,168,226,864.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087,707,820.31 : 3,132,782,863.79 = 778,514,332.95 : x
  2. Step 2: Convert to fraction form
    2,087,707,820.31/3,132,782,863.79 = 778,514,332.95/x
  3. Step 3: Cross multiply
    2,087,707,820.31x = 3,132,782,863.79 × 778,514,332.95
  4. Step 4: Simplify right side
    2,087,707,820.31x = 2,438,916,361,476,769,792
  5. Step 5: Solve for x
    x = 2,438,916,361,476,769,792/2,087,707,820.31
  6. Step 6: Final answer
    x = 1,168,226,864.77

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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.