Home / 507,895,428.96-700,950,488.88-287,855,235.36

Finding the Fourth Proportional to 507,895,428.96, 700,950,488.88 and 287,855,235.36

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Solution

The fourth proportional to 507,895,428.96, 700,950,488.88 and 287,855,235.36 is: 397,271,281.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,895,428.96 : 700,950,488.88 = 287,855,235.36 : x
  2. Step 2: Convert to fraction form
    507,895,428.96/700,950,488.88 = 287,855,235.36/x
  3. Step 3: Cross multiply
    507,895,428.96x = 700,950,488.88 × 287,855,235.36
  4. Step 4: Simplify right side
    507,895,428.96x = 201,772,267,952,259,456
  5. Step 5: Solve for x
    x = 201,772,267,952,259,456/507,895,428.96
  6. Step 6: Final answer
    x = 397,271,281.54

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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.