Home / 213,808,051.20-320,712,076.80-149,310,796.80

Finding the Fourth Proportional to 213,808,051.20, 320,712,076.80 and 149,310,796.80

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Solution

The fourth proportional to 213,808,051.20, 320,712,076.80 and 149,310,796.80 is: 223,966,195.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,808,051.20 : 320,712,076.80 = 149,310,796.80 : x
  2. Step 2: Convert to fraction form
    213,808,051.20/320,712,076.80 = 149,310,796.80/x
  3. Step 3: Cross multiply
    213,808,051.20x = 320,712,076.80 × 149,310,796.80
  4. Step 4: Simplify right side
    213,808,051.20x = 47,885,775,730,390,800
  5. Step 5: Solve for x
    x = 47,885,775,730,390,800/213,808,051.20
  6. Step 6: Final answer
    x = 223,966,195.20

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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.