Home / 568,702,968.86-784,811,160.55-317,807,361.07

Finding the Fourth Proportional to 568,702,968.86, 784,811,160.55 and 317,807,361.07

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Solution

The fourth proportional to 568,702,968.86, 784,811,160.55 and 317,807,361.07 is: 438,574,752.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,702,968.86 : 784,811,160.55 = 317,807,361.07 : x
  2. Step 2: Convert to fraction form
    568,702,968.86/784,811,160.55 = 317,807,361.07/x
  3. Step 3: Cross multiply
    568,702,968.86x = 784,811,160.55 × 317,807,361.07
  4. Step 4: Simplify right side
    568,702,968.86x = 249,418,763,870,215,392
  5. Step 5: Solve for x
    x = 249,418,763,870,215,392/568,702,968.86
  6. Step 6: Final answer
    x = 438,574,752.60

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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.