Home / 13,325,329.80-19,985,000.78-6,129,953.16

Finding the Fourth Proportional to 13,325,329.80, 19,985,000.78 and 6,129,953.16

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Solution

The fourth proportional to 13,325,329.80, 19,985,000.78 and 6,129,953.16 is: 9,193,552.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325,329.80 : 19,985,000.78 = 6,129,953.16 : x
  2. Step 2: Convert to fraction form
    13,325,329.80/19,985,000.78 = 6,129,953.16/x
  3. Step 3: Cross multiply
    13,325,329.80x = 19,985,000.78 × 6,129,953.16
  4. Step 4: Simplify right side
    13,325,329.80x = 122,507,118,683,963.47
  5. Step 5: Solve for x
    x = 122,507,118,683,963.47/13,325,329.80
  6. Step 6: Final answer
    x = 9,193,552.47

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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.