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Finding the Third Proportional to 867,386,809.50 and 1,321,407,831

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Solution

The third proportional to 867,386,809.50 and 1,321,407,831 is: 2,013,079,558.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,386,809.50 : 1,321,407,831 = 1,321,407,831 : x
  2. Step 2: Convert to fraction form
    867,386,809.50/1,321,407,831 = 1,321,407,831/x
  3. Step 3: Cross multiply
    867,386,809.50x = 1,321,407,831 × 1,321,407,831
  4. Step 4: Simplify right side
    867,386,809.50x = 1,746,118,655,828,124,672
  5. Step 5: Solve for x
    x = 1,746,118,655,828,124,672/867,386,809.50
  6. Step 6: Final answer
    x = 2,013,079,558.86

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.