Home / 97,075,443.40-145,613,165.10-81,769,942.60

Finding the Fourth Proportional to 97,075,443.40, 145,613,165.10 and 81,769,942.60

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Solution

The fourth proportional to 97,075,443.40, 145,613,165.10 and 81,769,942.60 is: 122,654,913.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,075,443.40 : 145,613,165.10 = 81,769,942.60 : x
  2. Step 2: Convert to fraction form
    97,075,443.40/145,613,165.10 = 81,769,942.60/x
  3. Step 3: Cross multiply
    97,075,443.40x = 145,613,165.10 × 81,769,942.60
  4. Step 4: Simplify right side
    97,075,443.40x = 11,906,780,152,031,322
  5. Step 5: Solve for x
    x = 11,906,780,152,031,322/97,075,443.40
  6. Step 6: Final answer
    x = 122,654,913.90

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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.