Home / 80,477,344.80-120,716,017.20-64,038,103.20

Finding the Fourth Proportional to 80,477,344.80, 120,716,017.20 and 64,038,103.20

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Solution

The fourth proportional to 80,477,344.80, 120,716,017.20 and 64,038,103.20 is: 96,057,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,477,344.80 : 120,716,017.20 = 64,038,103.20 : x
  2. Step 2: Convert to fraction form
    80,477,344.80/120,716,017.20 = 64,038,103.20/x
  3. Step 3: Cross multiply
    80,477,344.80x = 120,716,017.20 × 64,038,103.20
  4. Step 4: Simplify right side
    80,477,344.80x = 7,730,424,767,346,576
  5. Step 5: Solve for x
    x = 7,730,424,767,346,576/80,477,344.80
  6. Step 6: Final answer
    x = 96,057,154.80

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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.