Home / 78,887,859.40-118,275,801.90-35,777,715.40

Finding the Fourth Proportional to 78,887,859.40, 118,275,801.90 and 35,777,715.40

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Solution

The fourth proportional to 78,887,859.40, 118,275,801.90 and 35,777,715.40 is: 53,641,181.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,887,859.40 : 118,275,801.90 = 35,777,715.40 : x
  2. Step 2: Convert to fraction form
    78,887,859.40/118,275,801.90 = 35,777,715.40/x
  3. Step 3: Cross multiply
    78,887,859.40x = 118,275,801.90 × 35,777,715.40
  4. Step 4: Simplify right side
    78,887,859.40x = 4,231,637,979,084,979.50
  5. Step 5: Solve for x
    x = 4,231,637,979,084,979.50/78,887,859.40
  6. Step 6: Final answer
    x = 53,641,181.43

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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.