Home / 443,232,004.80-664,848,007.20-213,649,492.80

Finding the Fourth Proportional to 443,232,004.80, 664,848,007.20 and 213,649,492.80

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Solution

The fourth proportional to 443,232,004.80, 664,848,007.20 and 213,649,492.80 is: 320,474,239.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,232,004.80 : 664,848,007.20 = 213,649,492.80 : x
  2. Step 2: Convert to fraction form
    443,232,004.80/664,848,007.20 = 213,649,492.80/x
  3. Step 3: Cross multiply
    443,232,004.80x = 664,848,007.20 × 213,649,492.80
  4. Step 4: Simplify right side
    443,232,004.80x = 142,044,439,527,370,768
  5. Step 5: Solve for x
    x = 142,044,439,527,370,768/443,232,004.80
  6. Step 6: Final answer
    x = 320,474,239.20

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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.