Home / 54,457,811.20-81,686,716.80-47,739,347.20

Finding the Fourth Proportional to 54,457,811.20, 81,686,716.80 and 47,739,347.20

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Solution

The fourth proportional to 54,457,811.20, 81,686,716.80 and 47,739,347.20 is: 71,609,020.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,457,811.20 : 81,686,716.80 = 47,739,347.20 : x
  2. Step 2: Convert to fraction form
    54,457,811.20/81,686,716.80 = 47,739,347.20/x
  3. Step 3: Cross multiply
    54,457,811.20x = 81,686,716.80 × 47,739,347.20
  4. Step 4: Simplify right side
    54,457,811.20x = 3,899,670,534,943,273
  5. Step 5: Solve for x
    x = 3,899,670,534,943,273/54,457,811.20
  6. Step 6: Final answer
    x = 71,609,020.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.