Home / 10,300,878.80-15,451,318.20-7,646,670.80

Finding the Fourth Proportional to 10,300,878.80, 15,451,318.20 and 7,646,670.80

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Solution

The fourth proportional to 10,300,878.80, 15,451,318.20 and 7,646,670.80 is: 11,470,006.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,300,878.80 : 15,451,318.20 = 7,646,670.80 : x
  2. Step 2: Convert to fraction form
    10,300,878.80/15,451,318.20 = 7,646,670.80/x
  3. Step 3: Cross multiply
    10,300,878.80x = 15,451,318.20 × 7,646,670.80
  4. Step 4: Simplify right side
    10,300,878.80x = 118,151,143,701,448.55
  5. Step 5: Solve for x
    x = 118,151,143,701,448.55/10,300,878.80
  6. Step 6: Final answer
    x = 11,470,006.20

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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.