Home / 8,690,378.40-13,037,122.80-3,642,199.20

Finding the Fourth Proportional to 8,690,378.40, 13,037,122.80 and 3,642,199.20

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Solution

The fourth proportional to 8,690,378.40, 13,037,122.80 and 3,642,199.20 is: 5,463,950.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690,378.40 : 13,037,122.80 = 3,642,199.20 : x
  2. Step 2: Convert to fraction form
    8,690,378.40/13,037,122.80 = 3,642,199.20/x
  3. Step 3: Cross multiply
    8,690,378.40x = 13,037,122.80 × 3,642,199.20
  4. Step 4: Simplify right side
    8,690,378.40x = 47,483,798,232,461.77
  5. Step 5: Solve for x
    x = 47,483,798,232,461.77/8,690,378.40
  6. Step 6: Final answer
    x = 5,463,950.60

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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.