Home / 103,243,023.21-142,505,458.61-67,484,658.45

Finding the Fourth Proportional to 103,243,023.21, 142,505,458.61 and 67,484,658.45

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Solution

The fourth proportional to 103,243,023.21, 142,505,458.61 and 67,484,658.45 is: 93,148,494.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,243,023.21 : 142,505,458.61 = 67,484,658.45 : x
  2. Step 2: Convert to fraction form
    103,243,023.21/142,505,458.61 = 67,484,658.45/x
  3. Step 3: Cross multiply
    103,243,023.21x = 142,505,458.61 × 67,484,658.45
  4. Step 4: Simplify right side
    103,243,023.21x = 9,616,932,201,219,038
  5. Step 5: Solve for x
    x = 9,616,932,201,219,038/103,243,023.21
  6. Step 6: Final answer
    x = 93,148,494.71

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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.