Home / 84,993,388.40-127,490,082.60-66,499,241.60

Finding the Fourth Proportional to 84,993,388.40, 127,490,082.60 and 66,499,241.60

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Solution

The fourth proportional to 84,993,388.40, 127,490,082.60 and 66,499,241.60 is: 99,748,862.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,993,388.40 : 127,490,082.60 = 66,499,241.60 : x
  2. Step 2: Convert to fraction form
    84,993,388.40/127,490,082.60 = 66,499,241.60/x
  3. Step 3: Cross multiply
    84,993,388.40x = 127,490,082.60 × 66,499,241.60
  4. Step 4: Simplify right side
    84,993,388.40x = 8,477,993,804,421,356
  5. Step 5: Solve for x
    x = 8,477,993,804,421,356/84,993,388.40
  6. Step 6: Final answer
    x = 99,748,862.40

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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.