Home / 879,471,301.92-1,214,141,586.88-678,088,339.80

Finding the Fourth Proportional to 879,471,301.92, 1,214,141,586.88 and 678,088,339.80

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Solution

The fourth proportional to 879,471,301.92, 1,214,141,586.88 and 678,088,339.80 is: 936,125,205.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,471,301.92 : 1,214,141,586.88 = 678,088,339.80 : x
  2. Step 2: Convert to fraction form
    879,471,301.92/1,214,141,586.88 = 678,088,339.80/x
  3. Step 3: Cross multiply
    879,471,301.92x = 1,214,141,586.88 × 678,088,339.80
  4. Step 4: Simplify right side
    879,471,301.92x = 823,295,252,929,596,672
  5. Step 5: Solve for x
    x = 823,295,252,929,596,672/879,471,301.92
  6. Step 6: Final answer
    x = 936,125,205.15

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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.