Home / 66,430,670.40-91,672,243.20-38,946,902.40

Finding the Fourth Proportional to 66,430,670.40, 91,672,243.20 and 38,946,902.40

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Solution

The fourth proportional to 66,430,670.40, 91,672,243.20 and 38,946,902.40 is: 53,745,504.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,670.40 : 91,672,243.20 = 38,946,902.40 : x
  2. Step 2: Convert to fraction form
    66,430,670.40/91,672,243.20 = 38,946,902.40/x
  3. Step 3: Cross multiply
    66,430,670.40x = 91,672,243.20 × 38,946,902.40
  4. Step 4: Simplify right side
    66,430,670.40x = 3,570,349,908,699,463.50
  5. Step 5: Solve for x
    x = 3,570,349,908,699,463.50/66,430,670.40
  6. Step 6: Final answer
    x = 53,745,504.71

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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.