Home / 6,338,426,678.80-9,507,640,018.20-3,886,145,328.40

Finding the Fourth Proportional to 6,338,426,678.80, 9,507,640,018.20 and 3,886,145,328.40

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Solution

The fourth proportional to 6,338,426,678.80, 9,507,640,018.20 and 3,886,145,328.40 is: 5,829,217,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,338,426,678.80 : 9,507,640,018.20 = 3,886,145,328.40 : x
  2. Step 2: Convert to fraction form
    6,338,426,678.80/9,507,640,018.20 = 3,886,145,328.40/x
  3. Step 3: Cross multiply
    6,338,426,678.80x = 9,507,640,018.20 × 3,886,145,328.40
  4. Step 4: Simplify right side
    6,338,426,678.80x = 36,948,070,840,836,825,088
  5. Step 5: Solve for x
    x = 36,948,070,840,836,825,088/6,338,426,678.80
  6. Step 6: Final answer
    x = 5,829,217,992.60

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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.