Home / 520,846,856.46-718,441,720.11-309,003,705.63

Finding the Fourth Proportional to 520,846,856.46, 718,441,720.11 and 309,003,705.63

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Solution

The fourth proportional to 520,846,856.46, 718,441,720.11 and 309,003,705.63 is: 426,231,148.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,846,856.46 : 718,441,720.11 = 309,003,705.63 : x
  2. Step 2: Convert to fraction form
    520,846,856.46/718,441,720.11 = 309,003,705.63/x
  3. Step 3: Cross multiply
    520,846,856.46x = 718,441,720.11 × 309,003,705.63
  4. Step 4: Simplify right side
    520,846,856.46x = 222,001,153,793,181,280
  5. Step 5: Solve for x
    x = 222,001,153,793,181,280/520,846,856.46
  6. Step 6: Final answer
    x = 426,231,148.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.