Home / 806,040,748.22-1,209,521,856.81-437,605,656.78

Finding the Fourth Proportional to 806,040,748.22, 1,209,521,856.81 and 437,605,656.78

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Solution

The fourth proportional to 806,040,748.22, 1,209,521,856.81 and 437,605,656.78 is: 656,658,621.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,040,748.22 : 1,209,521,856.81 = 437,605,656.78 : x
  2. Step 2: Convert to fraction form
    806,040,748.22/1,209,521,856.81 = 437,605,656.78/x
  3. Step 3: Cross multiply
    806,040,748.22x = 1,209,521,856.81 × 437,605,656.78
  4. Step 4: Simplify right side
    806,040,748.22x = 529,293,606,539,105,088
  5. Step 5: Solve for x
    x = 529,293,606,539,105,088/806,040,748.22
  6. Step 6: Final answer
    x = 656,658,621.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.