Home / 21,094,652.95-31,643,215.09-8,140,871.52

Finding the Fourth Proportional to 21,094,652.95, 31,643,215.09 and 8,140,871.52

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Solution

The fourth proportional to 21,094,652.95, 31,643,215.09 and 8,140,871.52 is: 12,211,784.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,094,652.95 : 31,643,215.09 = 8,140,871.52 : x
  2. Step 2: Convert to fraction form
    21,094,652.95/31,643,215.09 = 8,140,871.52/x
  3. Step 3: Cross multiply
    21,094,652.95x = 31,643,215.09 × 8,140,871.52
  4. Step 4: Simplify right side
    21,094,652.95x = 257,603,348,507,063.03
  5. Step 5: Solve for x
    x = 257,603,348,507,063.03/21,094,652.95
  6. Step 6: Final answer
    x = 12,211,784.15

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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.