Home / 55,366,899.30-83,064,864.15-21,289,356.90

Finding the Fourth Proportional to 55,366,899.30, 83,064,864.15 and 21,289,356.90

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Solution

The fourth proportional to 55,366,899.30, 83,064,864.15 and 21,289,356.90 is: 31,939,616.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,366,899.30 : 83,064,864.15 = 21,289,356.90 : x
  2. Step 2: Convert to fraction form
    55,366,899.30/83,064,864.15 = 21,289,356.90/x
  3. Step 3: Cross multiply
    55,366,899.30x = 83,064,864.15 × 21,289,356.90
  4. Step 4: Simplify right side
    55,366,899.30x = 1,768,397,538,739,365.25
  5. Step 5: Solve for x
    x = 1,768,397,538,739,365.25/55,366,899.30
  6. Step 6: Final answer
    x = 31,939,616.65

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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.