Home / 28,990,114.20-40,007,121.47-15,937,701.81

Finding the Fourth Proportional to 28,990,114.20, 40,007,121.47 and 15,937,701.81

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Solution

The fourth proportional to 28,990,114.20, 40,007,121.47 and 15,937,701.81 is: 21,994,448.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,990,114.20 : 40,007,121.47 = 15,937,701.81 : x
  2. Step 2: Convert to fraction form
    28,990,114.20/40,007,121.47 = 15,937,701.81/x
  3. Step 3: Cross multiply
    28,990,114.20x = 40,007,121.47 × 15,937,701.81
  4. Step 4: Simplify right side
    28,990,114.20x = 637,621,572,185,620.38
  5. Step 5: Solve for x
    x = 637,621,572,185,620.38/28,990,114.20
  6. Step 6: Final answer
    x = 21,994,448.44

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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.