Home / 650,899,269.18-976,682,727.45-318,899,955.42

Finding the Fourth Proportional to 650,899,269.18, 976,682,727.45 and 318,899,955.42

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Solution

The fourth proportional to 650,899,269.18, 976,682,727.45 and 318,899,955.42 is: 478,513,485.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,899,269.18 : 976,682,727.45 = 318,899,955.42 : x
  2. Step 2: Convert to fraction form
    650,899,269.18/976,682,727.45 = 318,899,955.42/x
  3. Step 3: Cross multiply
    650,899,269.18x = 976,682,727.45 × 318,899,955.42
  4. Step 4: Simplify right side
    650,899,269.18x = 311,464,078,243,289,024
  5. Step 5: Solve for x
    x = 311,464,078,243,289,024/650,899,269.18
  6. Step 6: Final answer
    x = 478,513,485.87

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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.