Home / 13,120,948,391.72-18,106,897,081.10-7,406,435,653.74

Finding the Fourth Proportional to 13,120,948,391.72, 18,106,897,081.10 and 7,406,435,653.74

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Solution

The fourth proportional to 13,120,948,391.72, 18,106,897,081.10 and 7,406,435,653.74 is: 10,220,874,598.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120,948,391.72 : 18,106,897,081.10 = 7,406,435,653.74 : x
  2. Step 2: Convert to fraction form
    13,120,948,391.72/18,106,897,081.10 = 7,406,435,653.74/x
  3. Step 3: Cross multiply
    13,120,948,391.72x = 18,106,897,081.10 × 7,406,435,653.74
  4. Step 4: Simplify right side
    13,120,948,391.72x = 134,107,568,120,022,745,088
  5. Step 5: Solve for x
    x = 134,107,568,120,022,745,088/13,120,948,391.72
  6. Step 6: Final answer
    x = 10,220,874,598.11

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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.