Home / 7,574,128.78-10,449,126.84-4,631,717.20

Finding the Fourth Proportional to 7,574,128.78, 10,449,126.84 and 4,631,717.20

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Solution

The fourth proportional to 7,574,128.78, 10,449,126.84 and 4,631,717.20 is: 6,389,830.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,574,128.78 : 10,449,126.84 = 4,631,717.20 : x
  2. Step 2: Convert to fraction form
    7,574,128.78/10,449,126.84 = 4,631,717.20/x
  3. Step 3: Cross multiply
    7,574,128.78x = 10,449,126.84 × 4,631,717.20
  4. Step 4: Simplify right side
    7,574,128.78x = 48,397,400,509,809.65
  5. Step 5: Solve for x
    x = 48,397,400,509,809.65/7,574,128.78
  6. Step 6: Final answer
    x = 6,389,830.69

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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.