Home / 647,035,232.70-970,552,849.05-429,356,999.10

Finding the Fourth Proportional to 647,035,232.70, 970,552,849.05 and 429,356,999.10

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Solution

The fourth proportional to 647,035,232.70, 970,552,849.05 and 429,356,999.10 is: 644,035,498.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,035,232.70 : 970,552,849.05 = 429,356,999.10 : x
  2. Step 2: Convert to fraction form
    647,035,232.70/970,552,849.05 = 429,356,999.10/x
  3. Step 3: Cross multiply
    647,035,232.70x = 970,552,849.05 × 429,356,999.10
  4. Step 4: Simplify right side
    647,035,232.70x = 416,713,658,736,063,296
  5. Step 5: Solve for x
    x = 416,713,658,736,063,296/647,035,232.70
  6. Step 6: Final answer
    x = 644,035,498.65

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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.