Home / 142,559,921.40-196,734,213.98-87,555,777.90

Finding the Fourth Proportional to 142,559,921.40, 196,734,213.98 and 87,555,777.90

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Solution

The fourth proportional to 142,559,921.40, 196,734,213.98 and 87,555,777.90 is: 120,827,908.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,559,921.40 : 196,734,213.98 = 87,555,777.90 : x
  2. Step 2: Convert to fraction form
    142,559,921.40/196,734,213.98 = 87,555,777.90/x
  3. Step 3: Cross multiply
    142,559,921.40x = 196,734,213.98 × 87,555,777.90
  4. Step 4: Simplify right side
    142,559,921.40x = 17,225,217,144,563,956
  5. Step 5: Solve for x
    x = 17,225,217,144,563,956/142,559,921.40
  6. Step 6: Final answer
    x = 120,827,908.54

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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.