Home / 13,348,889.28-18,421,358.40-7,548,811.20

Finding the Fourth Proportional to 13,348,889.28, 18,421,358.40 and 7,548,811.20

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Solution

The fourth proportional to 13,348,889.28, 18,421,358.40 and 7,548,811.20 is: 10,417,297.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348,889.28 : 18,421,358.40 = 7,548,811.20 : x
  2. Step 2: Convert to fraction form
    13,348,889.28/18,421,358.40 = 7,548,811.20/x
  3. Step 3: Cross multiply
    13,348,889.28x = 18,421,358.40 × 7,548,811.20
  4. Step 4: Simplify right side
    13,348,889.28x = 139,059,356,609,134.08
  5. Step 5: Solve for x
    x = 139,059,356,609,134.08/13,348,889.28
  6. Step 6: Final answer
    x = 10,417,297.93

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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.