Home / 8,702,268.90-12,008,427.02-5,031,421

Finding the Fourth Proportional to 8,702,268.90, 12,008,427.02 and 5,031,421

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Solution

The fourth proportional to 8,702,268.90, 12,008,427.02 and 5,031,421 is: 6,942,953.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702,268.90 : 12,008,427.02 = 5,031,421 : x
  2. Step 2: Convert to fraction form
    8,702,268.90/12,008,427.02 = 5,031,421/x
  3. Step 3: Cross multiply
    8,702,268.90x = 12,008,427.02 × 5,031,421
  4. Step 4: Simplify right side
    8,702,268.90x = 60,419,451,885,395.41
  5. Step 5: Solve for x
    x = 60,419,451,885,395.41/8,702,268.90
  6. Step 6: Final answer
    x = 6,942,953.91

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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.