Home / 472,824,010.20-709,236,015.30-290,479,920.60

Finding the Fourth Proportional to 472,824,010.20, 709,236,015.30 and 290,479,920.60

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Solution

The fourth proportional to 472,824,010.20, 709,236,015.30 and 290,479,920.60 is: 435,719,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,824,010.20 : 709,236,015.30 = 290,479,920.60 : x
  2. Step 2: Convert to fraction form
    472,824,010.20/709,236,015.30 = 290,479,920.60/x
  3. Step 3: Cross multiply
    472,824,010.20x = 709,236,015.30 × 290,479,920.60
  4. Step 4: Simplify right side
    472,824,010.20x = 206,018,821,411,004,384
  5. Step 5: Solve for x
    x = 206,018,821,411,004,384/472,824,010.20
  6. Step 6: Final answer
    x = 435,719,880.90

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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.