Home / 1,260,781,302.30-1,891,171,953.45-442,893,603.30

Finding the Fourth Proportional to 1,260,781,302.30, 1,891,171,953.45 and 442,893,603.30

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Solution

The fourth proportional to 1,260,781,302.30, 1,891,171,953.45 and 442,893,603.30 is: 664,340,404.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,781,302.30 : 1,891,171,953.45 = 442,893,603.30 : x
  2. Step 2: Convert to fraction form
    1,260,781,302.30/1,891,171,953.45 = 442,893,603.30/x
  3. Step 3: Cross multiply
    1,260,781,302.30x = 1,891,171,953.45 × 442,893,603.30
  4. Step 4: Simplify right side
    1,260,781,302.30x = 837,587,960,923,370,368
  5. Step 5: Solve for x
    x = 837,587,960,923,370,368/1,260,781,302.30
  6. Step 6: Final answer
    x = 664,340,404.95

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Double scale
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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.