Home / 19,871,405.63-27,423,824.67-11,500,462.20

Finding the Fourth Proportional to 19,871,405.63, 27,423,824.67 and 11,500,462.20

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Solution

The fourth proportional to 19,871,405.63, 27,423,824.67 and 11,500,462.20 is: 15,871,381.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,871,405.63 : 27,423,824.67 = 11,500,462.20 : x
  2. Step 2: Convert to fraction form
    19,871,405.63/27,423,824.67 = 11,500,462.20/x
  3. Step 3: Cross multiply
    19,871,405.63x = 27,423,824.67 × 11,500,462.20
  4. Step 4: Simplify right side
    19,871,405.63x = 315,386,658,996,762.50
  5. Step 5: Solve for x
    x = 315,386,658,996,762.50/19,871,405.63
  6. Step 6: Final answer
    x = 15,871,381.47

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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.