Home / 1,214,789,238.40-1,676,400,800.40-657,859,540.72

Finding the Fourth Proportional to 1,214,789,238.40, 1,676,400,800.40 and 657,859,540.72

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Solution

The fourth proportional to 1,214,789,238.40, 1,676,400,800.40 and 657,859,540.72 is: 907,841,645.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,789,238.40 : 1,676,400,800.40 = 657,859,540.72 : x
  2. Step 2: Convert to fraction form
    1,214,789,238.40/1,676,400,800.40 = 657,859,540.72/x
  3. Step 3: Cross multiply
    1,214,789,238.40x = 1,676,400,800.40 × 657,859,540.72
  4. Step 4: Simplify right side
    1,214,789,238.40x = 1,102,836,260,613,784,448
  5. Step 5: Solve for x
    x = 1,102,836,260,613,784,448/1,214,789,238.40
  6. Step 6: Final answer
    x = 907,841,645.08

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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.