Home / 43,450,019.20-65,175,028.80-42,778,172.80

Finding the Fourth Proportional to 43,450,019.20, 65,175,028.80 and 42,778,172.80

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Solution

The fourth proportional to 43,450,019.20, 65,175,028.80 and 42,778,172.80 is: 64,167,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,450,019.20 : 65,175,028.80 = 42,778,172.80 : x
  2. Step 2: Convert to fraction form
    43,450,019.20/65,175,028.80 = 42,778,172.80/x
  3. Step 3: Cross multiply
    43,450,019.20x = 65,175,028.80 × 42,778,172.80
  4. Step 4: Simplify right side
    43,450,019.20x = 2,788,068,644,251,376.50
  5. Step 5: Solve for x
    x = 2,788,068,644,251,376.50/43,450,019.20
  6. Step 6: Final answer
    x = 64,167,259.20

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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.