Home / 21,808,261.54-30,090,115.40-12,386,956.74

Finding the Fourth Proportional to 21,808,261.54, 30,090,115.40 and 12,386,956.74

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Solution

The fourth proportional to 21,808,261.54, 30,090,115.40 and 12,386,956.74 is: 17,090,998.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,808,261.54 : 30,090,115.40 = 12,386,956.74 : x
  2. Step 2: Convert to fraction form
    21,808,261.54/30,090,115.40 = 12,386,956.74/x
  3. Step 3: Cross multiply
    21,808,261.54x = 30,090,115.40 × 12,386,956.74
  4. Step 4: Simplify right side
    21,808,261.54x = 372,724,957,761,407.81
  5. Step 5: Solve for x
    x = 372,724,957,761,407.81/21,808,261.54
  6. Step 6: Final answer
    x = 17,090,998.16

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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.