Home / 268,890,237.20-403,335,355.80-266,339,320.40

Finding the Fourth Proportional to 268,890,237.20, 403,335,355.80 and 266,339,320.40

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Solution

The fourth proportional to 268,890,237.20, 403,335,355.80 and 266,339,320.40 is: 399,508,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,890,237.20 : 403,335,355.80 = 266,339,320.40 : x
  2. Step 2: Convert to fraction form
    268,890,237.20/403,335,355.80 = 266,339,320.40/x
  3. Step 3: Cross multiply
    268,890,237.20x = 403,335,355.80 × 266,339,320.40
  4. Step 4: Simplify right side
    268,890,237.20x = 107,424,064,557,064,208
  5. Step 5: Solve for x
    x = 107,424,064,557,064,208/268,890,237.20
  6. Step 6: Final answer
    x = 399,508,980.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.