Home / 443,232,140.80-664,848,211.20-430,477,556.80

Finding the Fourth Proportional to 443,232,140.80, 664,848,211.20 and 430,477,556.80

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Solution

The fourth proportional to 443,232,140.80, 664,848,211.20 and 430,477,556.80 is: 645,716,335.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,232,140.80 : 664,848,211.20 = 430,477,556.80 : x
  2. Step 2: Convert to fraction form
    443,232,140.80/664,848,211.20 = 430,477,556.80/x
  3. Step 3: Cross multiply
    443,232,140.80x = 664,848,211.20 × 430,477,556.80
  4. Step 4: Simplify right side
    443,232,140.80x = 286,202,233,600,226,432
  5. Step 5: Solve for x
    x = 286,202,233,600,226,432/443,232,140.80
  6. Step 6: Final answer
    x = 645,716,335.20

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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.