Home / 66,054,109.52-91,149,337.60-38,178,625.52

Finding the Fourth Proportional to 66,054,109.52, 91,149,337.60 and 38,178,625.52

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Solution

The fourth proportional to 66,054,109.52, 91,149,337.60 and 38,178,625.52 is: 52,683,420.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,054,109.52 : 91,149,337.60 = 38,178,625.52 : x
  2. Step 2: Convert to fraction form
    66,054,109.52/91,149,337.60 = 38,178,625.52/x
  3. Step 3: Cross multiply
    66,054,109.52x = 91,149,337.60 × 38,178,625.52
  4. Step 4: Simplify right side
    66,054,109.52x = 3,479,956,426,626,455.50
  5. Step 5: Solve for x
    x = 3,479,956,426,626,455.50/66,054,109.52
  6. Step 6: Final answer
    x = 52,683,420.49

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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.