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Finding the Third Proportional to 690,746,764 and 1,409,240,778

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Solution

The third proportional to 690,746,764 and 1,409,240,778 is: 2,875,090,661.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,746,764 : 1,409,240,778 = 1,409,240,778 : x
  2. Step 2: Convert to fraction form
    690,746,764/1,409,240,778 = 1,409,240,778/x
  3. Step 3: Cross multiply
    690,746,764x = 1,409,240,778 × 1,409,240,778
  4. Step 4: Simplify right side
    690,746,764x = 1,985,959,570,378,045,184
  5. Step 5: Solve for x
    x = 1,985,959,570,378,045,184/690,746,764
  6. Step 6: Final answer
    x = 2,875,090,661.12

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.