Home / 56,138,835.78-77,463,348.03-31,355,968.86

Finding the Fourth Proportional to 56,138,835.78, 77,463,348.03 and 31,355,968.86

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Solution

The fourth proportional to 56,138,835.78, 77,463,348.03 and 31,355,968.86 is: 43,266,631.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,138,835.78 : 77,463,348.03 = 31,355,968.86 : x
  2. Step 2: Convert to fraction form
    56,138,835.78/77,463,348.03 = 31,355,968.86/x
  3. Step 3: Cross multiply
    56,138,835.78x = 77,463,348.03 × 31,355,968.86
  4. Step 4: Simplify right side
    56,138,835.78x = 2,428,938,328,620,022.50
  5. Step 5: Solve for x
    x = 2,428,938,328,620,022.50/56,138,835.78
  6. Step 6: Final answer
    x = 43,266,631.64

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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.