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Finding the Fourth Proportional to 814,519,578.22, 1,124,599,374.40 and 762,480,875.50

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Solution

The fourth proportional to 814,519,578.22, 1,124,599,374.40 and 762,480,875.50 is: 1,052,750,036.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,519,578.22 : 1,124,599,374.40 = 762,480,875.50 : x
  2. Step 2: Convert to fraction form
    814,519,578.22/1,124,599,374.40 = 762,480,875.50/x
  3. Step 3: Cross multiply
    814,519,578.22x = 1,124,599,374.40 × 762,480,875.50
  4. Step 4: Simplify right side
    814,519,578.22x = 857,485,515,579,264,384
  5. Step 5: Solve for x
    x = 857,485,515,579,264,384/814,519,578.22
  6. Step 6: Final answer
    x = 1,052,750,036.35

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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.