Home / 65,287,879.20-97,819,844.40-31,135,687.20

Finding the Fourth Proportional to 65,287,879.20, 97,819,844.40 and 31,135,687.20

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Solution

The fourth proportional to 65,287,879.20, 97,819,844.40 and 31,135,687.20 is: 46,650,130.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,287,879.20 : 97,819,844.40 = 31,135,687.20 : x
  2. Step 2: Convert to fraction form
    65,287,879.20/97,819,844.40 = 31,135,687.20/x
  3. Step 3: Cross multiply
    65,287,879.20x = 97,819,844.40 × 31,135,687.20
  4. Step 4: Simplify right side
    65,287,879.20x = 3,045,688,077,191,072
  5. Step 5: Solve for x
    x = 3,045,688,077,191,072/65,287,879.20
  6. Step 6: Final answer
    x = 46,650,130.38

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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.