Home / 12,742,456.65-19,107,426.51-5,454,886.02

Finding the Fourth Proportional to 12,742,456.65, 19,107,426.51 and 5,454,886.02

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Solution

The fourth proportional to 12,742,456.65, 19,107,426.51 and 5,454,886.02 is: 8,179,649.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742,456.65 : 19,107,426.51 = 5,454,886.02 : x
  2. Step 2: Convert to fraction form
    12,742,456.65/19,107,426.51 = 5,454,886.02/x
  3. Step 3: Cross multiply
    12,742,456.65x = 19,107,426.51 × 5,454,886.02
  4. Step 4: Simplify right side
    12,742,456.65x = 104,228,833,747,576.39
  5. Step 5: Solve for x
    x = 104,228,833,747,576.39/12,742,456.65
  6. Step 6: Final answer
    x = 8,179,649.86

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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.