Home / 38,518,918.15-57,742,209.10-12,942,040.63

Finding the Fourth Proportional to 38,518,918.15, 57,742,209.10 and 12,942,040.63

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Solution

The fourth proportional to 38,518,918.15, 57,742,209.10 and 12,942,040.63 is: 19,400,908.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,518,918.15 : 57,742,209.10 = 12,942,040.63 : x
  2. Step 2: Convert to fraction form
    38,518,918.15/57,742,209.10 = 12,942,040.63/x
  3. Step 3: Cross multiply
    38,518,918.15x = 57,742,209.10 × 12,942,040.63
  4. Step 4: Simplify right side
    38,518,918.15x = 747,302,016,238,155.75
  5. Step 5: Solve for x
    x = 747,302,016,238,155.75/38,518,918.15
  6. Step 6: Final answer
    x = 19,400,908.75

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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.