Home / 570,740,846.32-787,626,399-309,980,462.32

Finding the Fourth Proportional to 570,740,846.32, 787,626,399 and 309,980,462.32

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Solution

The fourth proportional to 570,740,846.32, 787,626,399 and 309,980,462.32 is: 427,775,227.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,740,846.32 : 787,626,399 = 309,980,462.32 : x
  2. Step 2: Convert to fraction form
    570,740,846.32/787,626,399 = 309,980,462.32/x
  3. Step 3: Cross multiply
    570,740,846.32x = 787,626,399 × 309,980,462.32
  4. Step 4: Simplify right side
    570,740,846.32x = 244,148,795,297,456,768
  5. Step 5: Solve for x
    x = 244,148,795,297,456,768/570,740,846.32
  6. Step 6: Final answer
    x = 427,775,227.36

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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.