Home / 19,152,840.80-28,729,261.20-11,972,482.40

Finding the Fourth Proportional to 19,152,840.80, 28,729,261.20 and 11,972,482.40

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Solution

The fourth proportional to 19,152,840.80, 28,729,261.20 and 11,972,482.40 is: 17,958,723.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,152,840.80 : 28,729,261.20 = 11,972,482.40 : x
  2. Step 2: Convert to fraction form
    19,152,840.80/28,729,261.20 = 11,972,482.40/x
  3. Step 3: Cross multiply
    19,152,840.80x = 28,729,261.20 × 11,972,482.40
  4. Step 4: Simplify right side
    19,152,840.80x = 343,960,574,082,002.88
  5. Step 5: Solve for x
    x = 343,960,574,082,002.88/19,152,840.80
  6. Step 6: Final answer
    x = 17,958,723.60

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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.