Home / 266,121,454.10-399,480,779.55-205,804,577.30

Finding the Fourth Proportional to 266,121,454.10, 399,480,779.55 and 205,804,577.30

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Solution

The fourth proportional to 266,121,454.10, 399,480,779.55 and 205,804,577.30 is: 308,937,786.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,121,454.10 : 399,480,779.55 = 205,804,577.30 : x
  2. Step 2: Convert to fraction form
    266,121,454.10/399,480,779.55 = 205,804,577.30/x
  3. Step 3: Cross multiply
    266,121,454.10x = 399,480,779.55 × 205,804,577.30
  4. Step 4: Simplify right side
    266,121,454.10x = 82,214,972,974,762,240
  5. Step 5: Solve for x
    x = 82,214,972,974,762,240/266,121,454.10
  6. Step 6: Final answer
    x = 308,937,786.52

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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.