Home / 18,420,243.03-27,639,681.17-12,276,416.93

Finding the Fourth Proportional to 18,420,243.03, 27,639,681.17 and 12,276,416.93

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Solution

The fourth proportional to 18,420,243.03, 27,639,681.17 and 12,276,416.93 is: 18,420,834.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420,243.03 : 27,639,681.17 = 12,276,416.93 : x
  2. Step 2: Convert to fraction form
    18,420,243.03/27,639,681.17 = 12,276,416.93/x
  3. Step 3: Cross multiply
    18,420,243.03x = 27,639,681.17 × 12,276,416.93
  4. Step 4: Simplify right side
    18,420,243.03x = 339,316,249,655,609.75
  5. Step 5: Solve for x
    x = 339,316,249,655,609.75/18,420,243.03
  6. Step 6: Final answer
    x = 18,420,834.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.