Home / 5,426,339.65-8,128,868.13-3,147,075.86

Finding the Fourth Proportional to 5,426,339.65, 8,128,868.13 and 3,147,075.86

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Solution

The fourth proportional to 5,426,339.65, 8,128,868.13 and 3,147,075.86 is: 4,714,442.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426,339.65 : 8,128,868.13 = 3,147,075.86 : x
  2. Step 2: Convert to fraction form
    5,426,339.65/8,128,868.13 = 3,147,075.86/x
  3. Step 3: Cross multiply
    5,426,339.65x = 8,128,868.13 × 3,147,075.86
  4. Step 4: Simplify right side
    5,426,339.65x = 25,582,164,620,402
  5. Step 5: Solve for x
    x = 25,582,164,620,402/5,426,339.65
  6. Step 6: Final answer
    x = 4,714,442.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.