Home / 472,395,906.30-708,593,859.45-278,207,364.90

Finding the Fourth Proportional to 472,395,906.30, 708,593,859.45 and 278,207,364.90

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Solution

The fourth proportional to 472,395,906.30, 708,593,859.45 and 278,207,364.90 is: 417,311,047.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,395,906.30 : 708,593,859.45 = 278,207,364.90 : x
  2. Step 2: Convert to fraction form
    472,395,906.30/708,593,859.45 = 278,207,364.90/x
  3. Step 3: Cross multiply
    472,395,906.30x = 708,593,859.45 × 278,207,364.90
  4. Step 4: Simplify right side
    472,395,906.30x = 197,136,030,421,905,472
  5. Step 5: Solve for x
    x = 197,136,030,421,905,472/472,395,906.30
  6. Step 6: Final answer
    x = 417,311,047.35

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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.