Home / 18,622,636.66-25,684,679.64-12,098,368.24

Finding the Fourth Proportional to 18,622,636.66, 25,684,679.64 and 12,098,368.24

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Solution

The fourth proportional to 18,622,636.66, 25,684,679.64 and 12,098,368.24 is: 16,686,289.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,622,636.66 : 25,684,679.64 = 12,098,368.24 : x
  2. Step 2: Convert to fraction form
    18,622,636.66/25,684,679.64 = 12,098,368.24/x
  3. Step 3: Cross multiply
    18,622,636.66x = 25,684,679.64 × 12,098,368.24
  4. Step 4: Simplify right side
    18,622,636.66x = 310,742,712,392,307.81
  5. Step 5: Solve for x
    x = 310,742,712,392,307.81/18,622,636.66
  6. Step 6: Final answer
    x = 16,686,289.81

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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.