Home / 806,040,748.72-1,209,521,857.56-437,605,657.28

Finding the Fourth Proportional to 806,040,748.72, 1,209,521,857.56 and 437,605,657.28

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Solution

The fourth proportional to 806,040,748.72, 1,209,521,857.56 and 437,605,657.28 is: 656,658,622.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,040,748.72 : 1,209,521,857.56 = 437,605,657.28 : x
  2. Step 2: Convert to fraction form
    806,040,748.72/1,209,521,857.56 = 437,605,657.28/x
  3. Step 3: Cross multiply
    806,040,748.72x = 1,209,521,857.56 × 437,605,657.28
  4. Step 4: Simplify right side
    806,040,748.72x = 529,293,607,472,070,272
  5. Step 5: Solve for x
    x = 529,293,607,472,070,272/806,040,748.72
  6. Step 6: Final answer
    x = 656,658,622.18

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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.