Home / 65,385,887.88-90,214,567.56-45,517,386.54

Finding the Fourth Proportional to 65,385,887.88, 90,214,567.56 and 45,517,386.54

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Solution

The fourth proportional to 65,385,887.88, 90,214,567.56 and 45,517,386.54 is: 62,801,492.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,385,887.88 : 90,214,567.56 = 45,517,386.54 : x
  2. Step 2: Convert to fraction form
    65,385,887.88/90,214,567.56 = 45,517,386.54/x
  3. Step 3: Cross multiply
    65,385,887.88x = 90,214,567.56 × 45,517,386.54
  4. Step 4: Simplify right side
    65,385,887.88x = 4,106,331,343,167,464.50
  5. Step 5: Solve for x
    x = 4,106,331,343,167,464.50/65,385,887.88
  6. Step 6: Final answer
    x = 62,801,492.44

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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.