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Finding the Fourth Proportional to 520,909,669.67, 717,861,892.83 and 511,335,137.27

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Solution

The fourth proportional to 520,909,669.67, 717,861,892.83 and 511,335,137.27 is: 704,667,298.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,909,669.67 : 717,861,892.83 = 511,335,137.27 : x
  2. Step 2: Convert to fraction form
    520,909,669.67/717,861,892.83 = 511,335,137.27/x
  3. Step 3: Cross multiply
    520,909,669.67x = 717,861,892.83 × 511,335,137.27
  4. Step 4: Simplify right side
    520,909,669.67x = 367,068,009,513,325,504
  5. Step 5: Solve for x
    x = 367,068,009,513,325,504/520,909,669.67
  6. Step 6: Final answer
    x = 704,667,298.17

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1.5x scale

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.