Home / 9,421,860,987.05-13,002,128,872.20-5,192,762,782.50

Finding the Fourth Proportional to 9,421,860,987.05, 13,002,128,872.20 and 5,192,762,782.50

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Solution

The fourth proportional to 9,421,860,987.05, 13,002,128,872.20 and 5,192,762,782.50 is: 7,165,990,985.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421,860,987.05 : 13,002,128,872.20 = 5,192,762,782.50 : x
  2. Step 2: Convert to fraction form
    9,421,860,987.05/13,002,128,872.20 = 5,192,762,782.50/x
  3. Step 3: Cross multiply
    9,421,860,987.05x = 13,002,128,872.20 × 5,192,762,782.50
  4. Step 4: Simplify right side
    9,421,860,987.05x = 67,516,970,900,828,864,512
  5. Step 5: Solve for x
    x = 67,516,970,900,828,864,512/9,421,860,987.05
  6. Step 6: Final answer
    x = 7,165,990,985.61

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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.