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Finding the Third Proportional to 129,901,950 and 282,671,880

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Solution

The third proportional to 129,901,950 and 282,671,880 is: 615,105,406.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,901,950 : 282,671,880 = 282,671,880 : x
  2. Step 2: Convert to fraction form
    129,901,950/282,671,880 = 282,671,880/x
  3. Step 3: Cross multiply
    129,901,950x = 282,671,880 × 282,671,880
  4. Step 4: Simplify right side
    129,901,950x = 79,903,391,742,734,400
  5. Step 5: Solve for x
    x = 79,903,391,742,734,400/129,901,950
  6. Step 6: Final answer
    x = 615,105,406.37

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.