Home / 99,642,408.40-149,463,612.60-98,634,638.80

Finding the Fourth Proportional to 99,642,408.40, 149,463,612.60 and 98,634,638.80

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Solution

The fourth proportional to 99,642,408.40, 149,463,612.60 and 98,634,638.80 is: 147,951,958.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,642,408.40 : 149,463,612.60 = 98,634,638.80 : x
  2. Step 2: Convert to fraction form
    99,642,408.40/149,463,612.60 = 98,634,638.80/x
  3. Step 3: Cross multiply
    99,642,408.40x = 149,463,612.60 × 98,634,638.80
  4. Step 4: Simplify right side
    99,642,408.40x = 14,742,289,442,544,128
  5. Step 5: Solve for x
    x = 14,742,289,442,544,128/99,642,408.40
  6. Step 6: Final answer
    x = 147,951,958.20

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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.