Home / 354,334,890.40-531,576,985.20-149,757,661.60

Finding the Fourth Proportional to 354,334,890.40, 531,576,985.20 and 149,757,661.60

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Solution

The fourth proportional to 354,334,890.40, 531,576,985.20 and 149,757,661.60 is: 224,668,042.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,334,890.40 : 531,576,985.20 = 149,757,661.60 : x
  2. Step 2: Convert to fraction form
    354,334,890.40/531,576,985.20 = 149,757,661.60/x
  3. Step 3: Cross multiply
    354,334,890.40x = 531,576,985.20 × 149,757,661.60
  4. Step 4: Simplify right side
    354,334,890.40x = 79,607,726,263,929,808
  5. Step 5: Solve for x
    x = 79,607,726,263,929,808/354,334,890.40
  6. Step 6: Final answer
    x = 224,668,042.64

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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.