Home / 851,638,523.20-1,277,457,784.80-579,540,731.20

Finding the Fourth Proportional to 851,638,523.20, 1,277,457,784.80 and 579,540,731.20

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Solution

The fourth proportional to 851,638,523.20, 1,277,457,784.80 and 579,540,731.20 is: 869,311,096.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,638,523.20 : 1,277,457,784.80 = 579,540,731.20 : x
  2. Step 2: Convert to fraction form
    851,638,523.20/1,277,457,784.80 = 579,540,731.20/x
  3. Step 3: Cross multiply
    851,638,523.20x = 1,277,457,784.80 × 579,540,731.20
  4. Step 4: Simplify right side
    851,638,523.20x = 740,338,818,680,124,288
  5. Step 5: Solve for x
    x = 740,338,818,680,124,288/851,638,523.20
  6. Step 6: Final answer
    x = 869,311,096.80

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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.