Home / 478,568,690.70-660,427,672.22-266,888,885.23

Finding the Fourth Proportional to 478,568,690.70, 660,427,672.22 and 266,888,885.23

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Solution

The fourth proportional to 478,568,690.70, 660,427,672.22 and 266,888,885.23 is: 368,308,267.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,568,690.70 : 660,427,672.22 = 266,888,885.23 : x
  2. Step 2: Convert to fraction form
    478,568,690.70/660,427,672.22 = 266,888,885.23/x
  3. Step 3: Cross multiply
    478,568,690.70x = 660,427,672.22 × 266,888,885.23
  4. Step 4: Simplify right side
    478,568,690.70x = 176,260,805,213,839,648
  5. Step 5: Solve for x
    x = 176,260,805,213,839,648/478,568,690.70
  6. Step 6: Final answer
    x = 368,308,267.21

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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.