Home / 653,256,000.80-979,884,001.20-326,738,650.40

Finding the Fourth Proportional to 653,256,000.80, 979,884,001.20 and 326,738,650.40

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Solution

The fourth proportional to 653,256,000.80, 979,884,001.20 and 326,738,650.40 is: 490,107,975.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,256,000.80 : 979,884,001.20 = 326,738,650.40 : x
  2. Step 2: Convert to fraction form
    653,256,000.80/979,884,001.20 = 326,738,650.40/x
  3. Step 3: Cross multiply
    653,256,000.80x = 979,884,001.20 × 326,738,650.40
  4. Step 4: Simplify right side
    653,256,000.80x = 320,165,976,100,640,000
  5. Step 5: Solve for x
    x = 320,165,976,100,640,000/653,256,000.80
  6. Step 6: Final answer
    x = 490,107,975.60

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1.5x scale

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.