Home / 105,484,778.50-145,532,564.34-66,329,534.86

Finding the Fourth Proportional to 105,484,778.50, 145,532,564.34 and 66,329,534.86

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Solution

The fourth proportional to 105,484,778.50, 145,532,564.34 and 66,329,534.86 is: 91,511,850.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,484,778.50 : 145,532,564.34 = 66,329,534.86 : x
  2. Step 2: Convert to fraction form
    105,484,778.50/145,532,564.34 = 66,329,534.86/x
  3. Step 3: Cross multiply
    105,484,778.50x = 145,532,564.34 × 66,329,534.86
  4. Step 4: Simplify right side
    105,484,778.50x = 9,653,107,299,655,224
  5. Step 5: Solve for x
    x = 9,653,107,299,655,224/105,484,778.50
  6. Step 6: Final answer
    x = 91,511,850.69

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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.