Home / 21,092,288.60-29,107,587.66-12,390,827.96

Finding the Fourth Proportional to 21,092,288.60, 29,107,587.66 and 12,390,827.96

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Solution

The fourth proportional to 21,092,288.60, 29,107,587.66 and 12,390,827.96 is: 17,099,477.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,092,288.60 : 29,107,587.66 = 12,390,827.96 : x
  2. Step 2: Convert to fraction form
    21,092,288.60/29,107,587.66 = 12,390,827.96/x
  3. Step 3: Cross multiply
    21,092,288.60x = 29,107,587.66 × 12,390,827.96
  4. Step 4: Simplify right side
    21,092,288.60x = 360,667,111,025,679
  5. Step 5: Solve for x
    x = 360,667,111,025,679/21,092,288.60
  6. Step 6: Final answer
    x = 17,099,477.34

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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.