Home / 659,178,051.20-988,767,076.80-199,068,243.20

Finding the Fourth Proportional to 659,178,051.20, 988,767,076.80 and 199,068,243.20

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Solution

The fourth proportional to 659,178,051.20, 988,767,076.80 and 199,068,243.20 is: 298,602,364.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,178,051.20 : 988,767,076.80 = 199,068,243.20 : x
  2. Step 2: Convert to fraction form
    659,178,051.20/988,767,076.80 = 199,068,243.20/x
  3. Step 3: Cross multiply
    659,178,051.20x = 988,767,076.80 × 199,068,243.20
  4. Step 4: Simplify right side
    659,178,051.20x = 196,832,124,912,575,456
  5. Step 5: Solve for x
    x = 196,832,124,912,575,456/659,178,051.20
  6. Step 6: Final answer
    x = 298,602,364.80

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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.