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Finding the Fourth Proportional to 64,682,974.40, 97,024,461.60 and 43,047,420.80

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Solution

The fourth proportional to 64,682,974.40, 97,024,461.60 and 43,047,420.80 is: 64,571,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,682,974.40 : 97,024,461.60 = 43,047,420.80 : x
  2. Step 2: Convert to fraction form
    64,682,974.40/97,024,461.60 = 43,047,420.80/x
  3. Step 3: Cross multiply
    64,682,974.40x = 97,024,461.60 × 43,047,420.80
  4. Step 4: Simplify right side
    64,682,974.40x = 4,176,652,826,388,640.50
  5. Step 5: Solve for x
    x = 4,176,652,826,388,640.50/64,682,974.40
  6. Step 6: Final answer
    x = 64,571,131.20

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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.