Home / 130,408,821.40-195,613,232.10-69,942,645.40

Finding the Fourth Proportional to 130,408,821.40, 195,613,232.10 and 69,942,645.40

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Solution

The fourth proportional to 130,408,821.40, 195,613,232.10 and 69,942,645.40 is: 104,913,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,408,821.40 : 195,613,232.10 = 69,942,645.40 : x
  2. Step 2: Convert to fraction form
    130,408,821.40/195,613,232.10 = 69,942,645.40/x
  3. Step 3: Cross multiply
    130,408,821.40x = 195,613,232.10 × 69,942,645.40
  4. Step 4: Simplify right side
    130,408,821.40x = 13,681,706,928,318,198
  5. Step 5: Solve for x
    x = 13,681,706,928,318,198/130,408,821.40
  6. Step 6: Final answer
    x = 104,913,968.10

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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.