Home / 42,968,228.69-64,451,705.14-10,620,129.44

Finding the Fourth Proportional to 42,968,228.69, 64,451,705.14 and 10,620,129.44

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Solution

The fourth proportional to 42,968,228.69, 64,451,705.14 and 10,620,129.44 is: 15,930,036.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,968,228.69 : 64,451,705.14 = 10,620,129.44 : x
  2. Step 2: Convert to fraction form
    42,968,228.69/64,451,705.14 = 10,620,129.44/x
  3. Step 3: Cross multiply
    42,968,228.69x = 64,451,705.14 × 10,620,129.44
  4. Step 4: Simplify right side
    42,968,228.69x = 684,485,450,866,704.50
  5. Step 5: Solve for x
    x = 684,485,450,866,704.50/42,968,228.69
  6. Step 6: Final answer
    x = 15,930,036.49

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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.