Home / 66,428,969.40-99,671,447.70-36,158,556.60

Finding the Fourth Proportional to 66,428,969.40, 99,671,447.70 and 36,158,556.60

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Solution

The fourth proportional to 66,428,969.40, 99,671,447.70 and 36,158,556.60 is: 54,253,072.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428,969.40 : 99,671,447.70 = 36,158,556.60 : x
  2. Step 2: Convert to fraction form
    66,428,969.40/99,671,447.70 = 36,158,556.60/x
  3. Step 3: Cross multiply
    66,428,969.40x = 99,671,447.70 × 36,158,556.60
  4. Step 4: Simplify right side
    66,428,969.40x = 3,603,975,683,064,390
  5. Step 5: Solve for x
    x = 3,603,975,683,064,390/66,428,969.40
  6. Step 6: Final answer
    x = 54,253,072.35

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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.