Home / 507,338,205.60-700,083,962.64-281,283,221.28

Finding the Fourth Proportional to 507,338,205.60, 700,083,962.64 and 281,283,221.28

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Solution

The fourth proportional to 507,338,205.60, 700,083,962.64 and 281,283,221.28 is: 388,147,137.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,338,205.60 : 700,083,962.64 = 281,283,221.28 : x
  2. Step 2: Convert to fraction form
    507,338,205.60/700,083,962.64 = 281,283,221.28/x
  3. Step 3: Cross multiply
    507,338,205.60x = 700,083,962.64 × 281,283,221.28
  4. Step 4: Simplify right side
    507,338,205.60x = 196,921,872,177,846,336
  5. Step 5: Solve for x
    x = 196,921,872,177,846,336/507,338,205.60
  6. Step 6: Final answer
    x = 388,147,137.36

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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.