Home / 548,385,916.42-756,772,564.66-313,441,621.46

Finding the Fourth Proportional to 548,385,916.42, 756,772,564.66 and 313,441,621.46

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Solution

The fourth proportional to 548,385,916.42, 756,772,564.66 and 313,441,621.46 is: 432,549,437.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,385,916.42 : 756,772,564.66 = 313,441,621.46 : x
  2. Step 2: Convert to fraction form
    548,385,916.42/756,772,564.66 = 313,441,621.46/x
  3. Step 3: Cross multiply
    548,385,916.42x = 756,772,564.66 × 313,441,621.46
  4. Step 4: Simplify right side
    548,385,916.42x = 237,204,019,743,473,056
  5. Step 5: Solve for x
    x = 237,204,019,743,473,056/548,385,916.42
  6. Step 6: Final answer
    x = 432,549,437.62

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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.