Home / 18,198,756,122.40-27,298,134,183.60-5,112,552,938.40

Finding the Fourth Proportional to 18,198,756,122.40, 27,298,134,183.60 and 5,112,552,938.40

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Solution

The fourth proportional to 18,198,756,122.40, 27,298,134,183.60 and 5,112,552,938.40 is: 7,668,829,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,198,756,122.40 : 27,298,134,183.60 = 5,112,552,938.40 : x
  2. Step 2: Convert to fraction form
    18,198,756,122.40/27,298,134,183.60 = 5,112,552,938.40/x
  3. Step 3: Cross multiply
    18,198,756,122.40x = 27,298,134,183.60 × 5,112,552,938.40
  4. Step 4: Simplify right side
    18,198,756,122.40x = 139,563,156,133,201,641,472
  5. Step 5: Solve for x
    x = 139,563,156,133,201,641,472/18,198,756,122.40
  6. Step 6: Final answer
    x = 7,668,829,407.60

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Double scale
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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.