Home / 425,862,026.66-638,844,035.97-130,718,486.86

Finding the Fourth Proportional to 425,862,026.66, 638,844,035.97 and 130,718,486.86

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Solution

The fourth proportional to 425,862,026.66, 638,844,035.97 and 130,718,486.86 is: 196,093,383.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,862,026.66 : 638,844,035.97 = 130,718,486.86 : x
  2. Step 2: Convert to fraction form
    425,862,026.66/638,844,035.97 = 130,718,486.86/x
  3. Step 3: Cross multiply
    425,862,026.66x = 638,844,035.97 × 130,718,486.86
  4. Step 4: Simplify right side
    425,862,026.66x = 83,508,725,721,533,808
  5. Step 5: Solve for x
    x = 83,508,725,721,533,808/425,862,026.66
  6. Step 6: Final answer
    x = 196,093,383.52

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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.