Home / 756,917,258.21-1,044,543,857.38-422,386,261.40

Finding the Fourth Proportional to 756,917,258.21, 1,044,543,857.38 and 422,386,261.40

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Solution

The fourth proportional to 756,917,258.21, 1,044,543,857.38 and 422,386,261.40 is: 582,891,947.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,917,258.21 : 1,044,543,857.38 = 422,386,261.40 : x
  2. Step 2: Convert to fraction form
    756,917,258.21/1,044,543,857.38 = 422,386,261.40/x
  3. Step 3: Cross multiply
    756,917,258.21x = 1,044,543,857.38 × 422,386,261.40
  4. Step 4: Simplify right side
    756,917,258.21x = 441,200,974,788,628,416
  5. Step 5: Solve for x
    x = 441,200,974,788,628,416/756,917,258.21
  6. Step 6: Final answer
    x = 582,891,947.57

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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.