Home / 1,217,957,385.54-1,680,797,316.24-661,047,108.42

Finding the Fourth Proportional to 1,217,957,385.54, 1,680,797,316.24 and 661,047,108.42

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Solution

The fourth proportional to 1,217,957,385.54, 1,680,797,316.24 and 661,047,108.42 is: 912,253,761.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,957,385.54 : 1,680,797,316.24 = 661,047,108.42 : x
  2. Step 2: Convert to fraction form
    1,217,957,385.54/1,680,797,316.24 = 661,047,108.42/x
  3. Step 3: Cross multiply
    1,217,957,385.54x = 1,680,797,316.24 × 661,047,108.42
  4. Step 4: Simplify right side
    1,217,957,385.54x = 1,111,086,205,740,548,224
  5. Step 5: Solve for x
    x = 1,111,086,205,740,548,224/1,217,957,385.54
  6. Step 6: Final answer
    x = 912,253,761.04

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Double scale
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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.