Home / 105,484,776.50-145,532,561.58-66,329,532.86

Finding the Fourth Proportional to 105,484,776.50, 145,532,561.58 and 66,329,532.86

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Solution

The fourth proportional to 105,484,776.50, 145,532,561.58 and 66,329,532.86 is: 91,511,847.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,484,776.50 : 145,532,561.58 = 66,329,532.86 : x
  2. Step 2: Convert to fraction form
    105,484,776.50/145,532,561.58 = 66,329,532.86/x
  3. Step 3: Cross multiply
    105,484,776.50x = 145,532,561.58 × 66,329,532.86
  4. Step 4: Simplify right side
    105,484,776.50x = 9,653,106,825,520,584
  5. Step 5: Solve for x
    x = 9,653,106,825,520,584/105,484,776.50
  6. Step 6: Final answer
    x = 91,511,847.93

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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.