Home / 65,288,078.20-97,820,142.90-31,135,886.20

Finding the Fourth Proportional to 65,288,078.20, 97,820,142.90 and 31,135,886.20

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Solution

The fourth proportional to 65,288,078.20, 97,820,142.90 and 31,135,886.20 is: 46,650,428.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,288,078.20 : 97,820,142.90 = 31,135,886.20 : x
  2. Step 2: Convert to fraction form
    65,288,078.20/97,820,142.90 = 31,135,886.20/x
  3. Step 3: Cross multiply
    65,288,078.20x = 97,820,142.90 × 31,135,886.20
  4. Step 4: Simplify right side
    65,288,078.20x = 3,045,716,837,402,138
  5. Step 5: Solve for x
    x = 3,045,716,837,402,138/65,288,078.20
  6. Step 6: Final answer
    x = 46,650,428.71

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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.