Home / 20,377,396.16-28,118,244.80-13,776,339.20

Finding the Fourth Proportional to 20,377,396.16, 28,118,244.80 and 13,776,339.20

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Solution

The fourth proportional to 20,377,396.16, 28,118,244.80 and 13,776,339.20 is: 19,009,616.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,377,396.16 : 28,118,244.80 = 13,776,339.20 : x
  2. Step 2: Convert to fraction form
    20,377,396.16/28,118,244.80 = 13,776,339.20/x
  3. Step 3: Cross multiply
    20,377,396.16x = 28,118,244.80 × 13,776,339.20
  4. Step 4: Simplify right side
    20,377,396.16x = 387,366,478,073,436.12
  5. Step 5: Solve for x
    x = 387,366,478,073,436.12/20,377,396.16
  6. Step 6: Final answer
    x = 19,009,616.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.