Home / 21,173,428.80-29,224,663.20-12,011,572.80

Finding the Fourth Proportional to 21,173,428.80, 29,224,663.20 and 12,011,572.80

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Solution

The fourth proportional to 21,173,428.80, 29,224,663.20 and 12,011,572.80 is: 16,578,994.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173,428.80 : 29,224,663.20 = 12,011,572.80 : x
  2. Step 2: Convert to fraction form
    21,173,428.80/29,224,663.20 = 12,011,572.80/x
  3. Step 3: Cross multiply
    21,173,428.80x = 29,224,663.20 × 12,011,572.80
  4. Step 4: Simplify right side
    21,173,428.80x = 351,034,169,582,281
  5. Step 5: Solve for x
    x = 351,034,169,582,281/21,173,428.80
  6. Step 6: Final answer
    x = 16,578,994.97

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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.