Home / 97,421,438.72-134,409,952.79-66,427,799.60

Finding the Fourth Proportional to 97,421,438.72, 134,409,952.79 and 66,427,799.60

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Solution

The fourth proportional to 97,421,438.72, 134,409,952.79 and 66,427,799.60 is: 91,648,794.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,421,438.72 : 134,409,952.79 = 66,427,799.60 : x
  2. Step 2: Convert to fraction form
    97,421,438.72/134,409,952.79 = 66,427,799.60/x
  3. Step 3: Cross multiply
    97,421,438.72x = 134,409,952.79 × 66,427,799.60
  4. Step 4: Simplify right side
    97,421,438.72x = 8,928,557,408,179,581
  5. Step 5: Solve for x
    x = 8,928,557,408,179,581/97,421,438.72
  6. Step 6: Final answer
    x = 91,648,794.41

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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.