Home / 699,219,441.16-964,922,924.85-385,953,721.54

Finding the Fourth Proportional to 699,219,441.16, 964,922,924.85 and 385,953,721.54

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Solution

The fourth proportional to 699,219,441.16, 964,922,924.85 and 385,953,721.54 is: 532,616,188.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,219,441.16 : 964,922,924.85 = 385,953,721.54 : x
  2. Step 2: Convert to fraction form
    699,219,441.16/964,922,924.85 = 385,953,721.54/x
  3. Step 3: Cross multiply
    699,219,441.16x = 964,922,924.85 × 385,953,721.54
  4. Step 4: Simplify right side
    699,219,441.16x = 372,415,593,845,119,296
  5. Step 5: Solve for x
    x = 372,415,593,845,119,296/699,219,441.16
  6. Step 6: Final answer
    x = 532,616,188.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.