Home / 472,750,427.60-647,665,064.82-455,071,762

Finding the Fourth Proportional to 472,750,427.60, 647,665,064.82 and 455,071,762

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Solution

The fourth proportional to 472,750,427.60, 647,665,064.82 and 455,071,762 is: 623,445,405.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,750,427.60 : 647,665,064.82 = 455,071,762 : x
  2. Step 2: Convert to fraction form
    472,750,427.60/647,665,064.82 = 455,071,762/x
  3. Step 3: Cross multiply
    472,750,427.60x = 647,665,064.82 × 455,071,762
  4. Step 4: Simplify right side
    472,750,427.60x = 294,734,082,233,481,664
  5. Step 5: Solve for x
    x = 294,734,082,233,481,664/472,750,427.60
  6. Step 6: Final answer
    x = 623,445,405.92

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.