Home / 66,521,667.10-99,773,169.45-21,088,054.30

Finding the Fourth Proportional to 66,521,667.10, 99,773,169.45 and 21,088,054.30

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Solution

The fourth proportional to 66,521,667.10, 99,773,169.45 and 21,088,054.30 is: 31,629,123.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,521,667.10 : 99,773,169.45 = 21,088,054.30 : x
  2. Step 2: Convert to fraction form
    66,521,667.10/99,773,169.45 = 21,088,054.30/x
  3. Step 3: Cross multiply
    66,521,667.10x = 99,773,169.45 × 21,088,054.30
  4. Step 4: Simplify right side
    66,521,667.10x = 2,104,022,015,044,701.25
  5. Step 5: Solve for x
    x = 2,104,022,015,044,701.25/66,521,667.10
  6. Step 6: Final answer
    x = 31,629,123.36

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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.