Home / 20,128,428.68-27,776,501.88-12,301,036.16

Finding the Fourth Proportional to 20,128,428.68, 27,776,501.88 and 12,301,036.16

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Solution

The fourth proportional to 20,128,428.68, 27,776,501.88 and 12,301,036.16 is: 16,974,983.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,128,428.68 : 27,776,501.88 = 12,301,036.16 : x
  2. Step 2: Convert to fraction form
    20,128,428.68/27,776,501.88 = 12,301,036.16/x
  3. Step 3: Cross multiply
    20,128,428.68x = 27,776,501.88 × 12,301,036.16
  4. Step 4: Simplify right side
    20,128,428.68x = 341,679,754,024,188
  5. Step 5: Solve for x
    x = 341,679,754,024,188/20,128,428.68
  6. Step 6: Final answer
    x = 16,974,983.96

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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.