Home / 990,824,291.10-1,486,236,436.65-408,258,666.90

Finding the Fourth Proportional to 990,824,291.10, 1,486,236,436.65 and 408,258,666.90

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Solution

The fourth proportional to 990,824,291.10, 1,486,236,436.65 and 408,258,666.90 is: 612,388,000.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,824,291.10 : 1,486,236,436.65 = 408,258,666.90 : x
  2. Step 2: Convert to fraction form
    990,824,291.10/1,486,236,436.65 = 408,258,666.90/x
  3. Step 3: Cross multiply
    990,824,291.10x = 1,486,236,436.65 × 408,258,666.90
  4. Step 4: Simplify right side
    990,824,291.10x = 606,768,906,324,935,296
  5. Step 5: Solve for x
    x = 606,768,906,324,935,296/990,824,291.10
  6. Step 6: Final answer
    x = 612,388,000.35

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Double scale
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Similar ratio
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1.5x scale

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.