Home / 103,243,022.96-142,505,458.26-67,484,658.20

Finding the Fourth Proportional to 103,243,022.96, 142,505,458.26 and 67,484,658.20

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Solution

The fourth proportional to 103,243,022.96, 142,505,458.26 and 67,484,658.20 is: 93,148,494.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,243,022.96 : 142,505,458.26 = 67,484,658.20 : x
  2. Step 2: Convert to fraction form
    103,243,022.96/142,505,458.26 = 67,484,658.20/x
  3. Step 3: Cross multiply
    103,243,022.96x = 142,505,458.26 × 67,484,658.20
  4. Step 4: Simplify right side
    103,243,022.96x = 9,616,932,142,310,466
  5. Step 5: Solve for x
    x = 9,616,932,142,310,466/103,243,022.96
  6. Step 6: Final answer
    x = 93,148,494.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.