Home / 66,038,825.10-91,141,987.74-39,933,530.10

Finding the Fourth Proportional to 66,038,825.10, 91,141,987.74 and 39,933,530.10

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Solution

The fourth proportional to 66,038,825.10, 91,141,987.74 and 39,933,530.10 is: 55,113,356.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,038,825.10 : 91,141,987.74 = 39,933,530.10 : x
  2. Step 2: Convert to fraction form
    66,038,825.10/91,141,987.74 = 39,933,530.10/x
  3. Step 3: Cross multiply
    66,038,825.10x = 91,141,987.74 × 39,933,530.10
  4. Step 4: Simplify right side
    66,038,825.10x = 3,639,621,310,789,121
  5. Step 5: Solve for x
    x = 3,639,621,310,789,121/66,038,825.10
  6. Step 6: Final answer
    x = 55,113,356.50

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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.