Home / 12,789,649.47-19,150,096.64-9,742,499.63

Finding the Fourth Proportional to 12,789,649.47, 19,150,096.64 and 9,742,499.63

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Solution

The fourth proportional to 12,789,649.47, 19,150,096.64 and 9,742,499.63 is: 14,587,562.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,789,649.47 : 19,150,096.64 = 9,742,499.63 : x
  2. Step 2: Convert to fraction form
    12,789,649.47/19,150,096.64 = 9,742,499.63/x
  3. Step 3: Cross multiply
    12,789,649.47x = 19,150,096.64 × 9,742,499.63
  4. Step 4: Simplify right side
    12,789,649.47x = 186,569,809,428,827
  5. Step 5: Solve for x
    x = 186,569,809,428,827/12,789,649.47
  6. Step 6: Final answer
    x = 14,587,562.38

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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.