Home / 28,992,857.28-40,010,222.88-15,941,450.40

Finding the Fourth Proportional to 28,992,857.28, 40,010,222.88 and 15,941,450.40

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Solution

The fourth proportional to 28,992,857.28, 40,010,222.88 and 15,941,450.40 is: 21,999,245.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,992,857.28 : 40,010,222.88 = 15,941,450.40 : x
  2. Step 2: Convert to fraction form
    28,992,857.28/40,010,222.88 = 15,941,450.40/x
  3. Step 3: Cross multiply
    28,992,857.28x = 40,010,222.88 × 15,941,450.40
  4. Step 4: Simplify right side
    28,992,857.28x = 637,820,983,534,465.25
  5. Step 5: Solve for x
    x = 637,820,983,534,465.25/28,992,857.28
  6. Step 6: Final answer
    x = 21,999,245.45

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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.