Home / 21,127,606.52-29,156,218.26-12,426,145.88

Finding the Fourth Proportional to 21,127,606.52, 29,156,218.26 and 12,426,145.88

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Solution

The fourth proportional to 21,127,606.52, 29,156,218.26 and 12,426,145.88 is: 17,148,152.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,127,606.52 : 29,156,218.26 = 12,426,145.88 : x
  2. Step 2: Convert to fraction form
    21,127,606.52/29,156,218.26 = 12,426,145.88/x
  3. Step 3: Cross multiply
    21,127,606.52x = 29,156,218.26 × 12,426,145.88
  4. Step 4: Simplify right side
    21,127,606.52x = 362,299,421,407,879.81
  5. Step 5: Solve for x
    x = 362,299,421,407,879.81/21,127,606.52
  6. Step 6: Final answer
    x = 17,148,152.63

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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.