Home / 67,286,168.48-100,927,803.74-18,762,729.24

Finding the Fourth Proportional to 67,286,168.48, 100,927,803.74 and 18,762,729.24

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Solution

The fourth proportional to 67,286,168.48, 100,927,803.74 and 18,762,729.24 is: 28,143,689.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,286,168.48 : 100,927,803.74 = 18,762,729.24 : x
  2. Step 2: Convert to fraction form
    67,286,168.48/100,927,803.74 = 18,762,729.24/x
  3. Step 3: Cross multiply
    67,286,168.48x = 100,927,803.74 × 18,762,729.24
  4. Step 4: Simplify right side
    67,286,168.48x = 1,893,681,054,361,479
  5. Step 5: Solve for x
    x = 1,893,681,054,361,479/67,286,168.48
  6. Step 6: Final answer
    x = 28,143,689.81

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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.