Home / 13,419,145,389.83-18,518,476,572.21-7,397,518,507.61

Finding the Fourth Proportional to 13,419,145,389.83, 18,518,476,572.21 and 7,397,518,507.61

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Solution

The fourth proportional to 13,419,145,389.83, 18,518,476,572.21 and 7,397,518,507.61 is: 10,208,606,375.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419,145,389.83 : 18,518,476,572.21 = 7,397,518,507.61 : x
  2. Step 2: Convert to fraction form
    13,419,145,389.83/18,518,476,572.21 = 7,397,518,507.61/x
  3. Step 3: Cross multiply
    13,419,145,389.83x = 18,518,476,572.21 × 7,397,518,507.61
  4. Step 4: Simplify right side
    13,419,145,389.83x = 136,990,773,175,536,091,136
  5. Step 5: Solve for x
    x = 136,990,773,175,536,091,136/13,419,145,389.83
  6. Step 6: Final answer
    x = 10,208,606,375.14

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1.5x scale

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.