Home / 20,868,884.16-28,772,579.44-14,915,396.32

Finding the Fourth Proportional to 20,868,884.16, 28,772,579.44 and 14,915,396.32

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Solution

The fourth proportional to 20,868,884.16, 28,772,579.44 and 14,915,396.32 is: 20,564,320.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,868,884.16 : 28,772,579.44 = 14,915,396.32 : x
  2. Step 2: Convert to fraction form
    20,868,884.16/28,772,579.44 = 14,915,396.32/x
  3. Step 3: Cross multiply
    20,868,884.16x = 28,772,579.44 × 14,915,396.32
  4. Step 4: Simplify right side
    20,868,884.16x = 429,154,425,496,283.69
  5. Step 5: Solve for x
    x = 429,154,425,496,283.69/20,868,884.16
  6. Step 6: Final answer
    x = 20,564,320.65

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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.