Home / 13,120,948,392.72-18,106,897,082.48-7,406,435,654.74

Finding the Fourth Proportional to 13,120,948,392.72, 18,106,897,082.48 and 7,406,435,654.74

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Solution

The fourth proportional to 13,120,948,392.72, 18,106,897,082.48 and 7,406,435,654.74 is: 10,220,874,599.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120,948,392.72 : 18,106,897,082.48 = 7,406,435,654.74 : x
  2. Step 2: Convert to fraction form
    13,120,948,392.72/18,106,897,082.48 = 7,406,435,654.74/x
  3. Step 3: Cross multiply
    13,120,948,392.72x = 18,106,897,082.48 × 7,406,435,654.74
  4. Step 4: Simplify right side
    13,120,948,392.72x = 134,107,568,148,387,545,088
  5. Step 5: Solve for x
    x = 134,107,568,148,387,545,088/13,120,948,392.72
  6. Step 6: Final answer
    x = 10,220,874,599.49

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Double scale
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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.