Home / 65,740,731.84-90,751,266.81-39,288,417.66

Finding the Fourth Proportional to 65,740,731.84, 90,751,266.81 and 39,288,417.66

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Solution

The fourth proportional to 65,740,731.84, 90,751,266.81 and 39,288,417.66 is: 54,235,381.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,740,731.84 : 90,751,266.81 = 39,288,417.66 : x
  2. Step 2: Convert to fraction form
    65,740,731.84/90,751,266.81 = 39,288,417.66/x
  3. Step 3: Cross multiply
    65,740,731.84x = 90,751,266.81 × 39,288,417.66
  4. Step 4: Simplify right side
    65,740,731.84x = 3,565,473,673,605,375.50
  5. Step 5: Solve for x
    x = 3,565,473,673,605,375.50/65,740,731.84
  6. Step 6: Final answer
    x = 54,235,381.53

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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.