Home / 65,565,399.60-90,492,095.16-39,105,449.28

Finding the Fourth Proportional to 65,565,399.60, 90,492,095.16 and 39,105,449.28

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Solution

The fourth proportional to 65,565,399.60, 90,492,095.16 and 39,105,449.28 is: 53,972,584.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,565,399.60 : 90,492,095.16 = 39,105,449.28 : x
  2. Step 2: Convert to fraction form
    65,565,399.60/90,492,095.16 = 39,105,449.28/x
  3. Step 3: Cross multiply
    65,565,399.60x = 90,492,095.16 × 39,105,449.28
  4. Step 4: Simplify right side
    65,565,399.60x = 3,538,734,037,520,313.50
  5. Step 5: Solve for x
    x = 3,538,734,037,520,313.50/65,565,399.60
  6. Step 6: Final answer
    x = 53,972,584.00

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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.