Home / 137,644,698.60-206,467,047.90-76,422,695.40

Finding the Fourth Proportional to 137,644,698.60, 206,467,047.90 and 76,422,695.40

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Solution

The fourth proportional to 137,644,698.60, 206,467,047.90 and 76,422,695.40 is: 114,634,043.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,644,698.60 : 206,467,047.90 = 76,422,695.40 : x
  2. Step 2: Convert to fraction form
    137,644,698.60/206,467,047.90 = 76,422,695.40/x
  3. Step 3: Cross multiply
    137,644,698.60x = 206,467,047.90 × 76,422,695.40
  4. Step 4: Simplify right side
    137,644,698.60x = 15,778,768,311,798,912
  5. Step 5: Solve for x
    x = 15,778,768,311,798,912/137,644,698.60
  6. Step 6: Final answer
    x = 114,634,043.10

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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.