Home / 876,581,508.88-1,209,683,661.32-474,695,958.56

Finding the Fourth Proportional to 876,581,508.88, 1,209,683,661.32 and 474,695,958.56

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Solution

The fourth proportional to 876,581,508.88, 1,209,683,661.32 and 474,695,958.56 is: 655,081,061.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,581,508.88 : 1,209,683,661.32 = 474,695,958.56 : x
  2. Step 2: Convert to fraction form
    876,581,508.88/1,209,683,661.32 = 474,695,958.56/x
  3. Step 3: Cross multiply
    876,581,508.88x = 1,209,683,661.32 × 474,695,958.56
  4. Step 4: Simplify right side
    876,581,508.88x = 574,231,945,164,667,776
  5. Step 5: Solve for x
    x = 574,231,945,164,667,776/876,581,508.88
  6. Step 6: Final answer
    x = 655,081,061.31

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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.