Home / 501,211,656.27-691,615,988.87-278,202,737.30

Finding the Fourth Proportional to 501,211,656.27, 691,615,988.87 and 278,202,737.30

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Solution

The fourth proportional to 501,211,656.27, 691,615,988.87 and 278,202,737.30 is: 383,888,640.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,211,656.27 : 691,615,988.87 = 278,202,737.30 : x
  2. Step 2: Convert to fraction form
    501,211,656.27/691,615,988.87 = 278,202,737.30/x
  3. Step 3: Cross multiply
    501,211,656.27x = 691,615,988.87 × 278,202,737.30
  4. Step 4: Simplify right side
    501,211,656.27x = 192,409,461,259,231,264
  5. Step 5: Solve for x
    x = 192,409,461,259,231,264/501,211,656.27
  6. Step 6: Final answer
    x = 383,888,640.36

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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.