Home / 141,729,281.28-195,586,406.64-76,539,185.28

Finding the Fourth Proportional to 141,729,281.28, 195,586,406.64 and 76,539,185.28

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Solution

The fourth proportional to 141,729,281.28, 195,586,406.64 and 76,539,185.28 is: 105,624,074.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,729,281.28 : 195,586,406.64 = 76,539,185.28 : x
  2. Step 2: Convert to fraction form
    141,729,281.28/195,586,406.64 = 76,539,185.28/x
  3. Step 3: Cross multiply
    141,729,281.28x = 195,586,406.64 × 76,539,185.28
  4. Step 4: Simplify right side
    141,729,281.28x = 14,970,024,216,068,382
  5. Step 5: Solve for x
    x = 14,970,024,216,068,382/141,729,281.28
  6. Step 6: Final answer
    x = 105,624,074.86

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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.