Home / 72,764,687.40-108,987,598.80-64,686,784.20

Finding the Fourth Proportional to 72,764,687.40, 108,987,598.80 and 64,686,784.20

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Solution

The fourth proportional to 72,764,687.40, 108,987,598.80 and 64,686,784.20 is: 96,888,443.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,764,687.40 : 108,987,598.80 = 64,686,784.20 : x
  2. Step 2: Convert to fraction form
    72,764,687.40/108,987,598.80 = 64,686,784.20/x
  3. Step 3: Cross multiply
    72,764,687.40x = 108,987,598.80 × 64,686,784.20
  4. Step 4: Simplify right side
    72,764,687.40x = 7,050,057,284,051,779
  5. Step 5: Solve for x
    x = 7,050,057,284,051,779/72,764,687.40
  6. Step 6: Final answer
    x = 96,888,443.23

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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.