Home / 290,448,000.80-435,672,001.20-154,063,181.60

Finding the Fourth Proportional to 290,448,000.80, 435,672,001.20 and 154,063,181.60

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Solution

The fourth proportional to 290,448,000.80, 435,672,001.20 and 154,063,181.60 is: 231,094,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,448,000.80 : 435,672,001.20 = 154,063,181.60 : x
  2. Step 2: Convert to fraction form
    290,448,000.80/435,672,001.20 = 154,063,181.60/x
  3. Step 3: Cross multiply
    290,448,000.80x = 435,672,001.20 × 154,063,181.60
  4. Step 4: Simplify right side
    290,448,000.80x = 67,121,014,638,911,016
  5. Step 5: Solve for x
    x = 67,121,014,638,911,016/290,448,000.80
  6. Step 6: Final answer
    x = 231,094,772.40

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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.