Home / 97,019,743.80-145,529,615.70-66,408,742.20

Finding the Fourth Proportional to 97,019,743.80, 145,529,615.70 and 66,408,742.20

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Solution

The fourth proportional to 97,019,743.80, 145,529,615.70 and 66,408,742.20 is: 99,613,113.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,019,743.80 : 145,529,615.70 = 66,408,742.20 : x
  2. Step 2: Convert to fraction form
    97,019,743.80/145,529,615.70 = 66,408,742.20/x
  3. Step 3: Cross multiply
    97,019,743.80x = 145,529,615.70 × 66,408,742.20
  4. Step 4: Simplify right side
    97,019,743.80x = 9,664,438,731,486,372
  5. Step 5: Solve for x
    x = 9,664,438,731,486,372/97,019,743.80
  6. Step 6: Final answer
    x = 99,613,113.30

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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.