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Finding the Third Proportional to 209,581,047,893 and 455,882,862,424

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Solution

The third proportional to 209,581,047,893 and 455,882,862,424 is: 991,641,116,128.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,581,047,893 : 455,882,862,424 = 455,882,862,424 : x
  2. Step 2: Convert to fraction form
    209,581,047,893/455,882,862,424 = 455,882,862,424/x
  3. Step 3: Cross multiply
    209,581,047,893x = 455,882,862,424 × 455,882,862,424
  4. Step 4: Simplify right side
    209,581,047,893x = 207,829,184,251,899,716,567,040
  5. Step 5: Solve for x
    x = 207,829,184,251,899,716,567,040/209,581,047,893
  6. Step 6: Final answer
    x = 991,641,116,128.05

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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.