Home / 2,139,309,044.91-2,951,973,746.19-1,247,012,520.03

Finding the Fourth Proportional to 2,139,309,044.91, 2,951,973,746.19 and 1,247,012,520.03

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Solution

The fourth proportional to 2,139,309,044.91, 2,951,973,746.19 and 1,247,012,520.03 is: 1,720,718,298.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,309,044.91 : 2,951,973,746.19 = 1,247,012,520.03 : x
  2. Step 2: Convert to fraction form
    2,139,309,044.91/2,951,973,746.19 = 1,247,012,520.03/x
  3. Step 3: Cross multiply
    2,139,309,044.91x = 2,951,973,746.19 × 1,247,012,520.03
  4. Step 4: Simplify right side
    2,139,309,044.91x = 3,681,148,220,298,791,424
  5. Step 5: Solve for x
    x = 3,681,148,220,298,791,424/2,139,309,044.91
  6. Step 6: Final answer
    x = 1,720,718,298.77

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Double scale
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1.5x scale

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.