Home / 647,035,278.20-970,552,917.30-429,357,044.60

Finding the Fourth Proportional to 647,035,278.20, 970,552,917.30 and 429,357,044.60

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Solution

The fourth proportional to 647,035,278.20, 970,552,917.30 and 429,357,044.60 is: 644,035,566.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,035,278.20 : 970,552,917.30 = 429,357,044.60 : x
  2. Step 2: Convert to fraction form
    647,035,278.20/970,552,917.30 = 429,357,044.60/x
  3. Step 3: Cross multiply
    647,035,278.20x = 970,552,917.30 × 429,357,044.60
  4. Step 4: Simplify right side
    647,035,278.20x = 416,713,732,199,836,224
  5. Step 5: Solve for x
    x = 416,713,732,199,836,224/647,035,278.20
  6. Step 6: Final answer
    x = 644,035,566.90

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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.