Home / 620,845,601.72-931,656,106.87-413,729,342.69

Finding the Fourth Proportional to 620,845,601.72, 931,656,106.87 and 413,729,342.69

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Solution

The fourth proportional to 620,845,601.72, 931,656,106.87 and 413,729,342.69 is: 620,852,378.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,845,601.72 : 931,656,106.87 = 413,729,342.69 : x
  2. Step 2: Convert to fraction form
    620,845,601.72/931,656,106.87 = 413,729,342.69/x
  3. Step 3: Cross multiply
    620,845,601.72x = 931,656,106.87 × 413,729,342.69
  4. Step 4: Simplify right side
    620,845,601.72x = 385,453,468,702,756,864
  5. Step 5: Solve for x
    x = 385,453,468,702,756,864/620,845,601.72
  6. Step 6: Final answer
    x = 620,852,378.82

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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.