Home / 20,172,547,765.80-30,258,821,648.70-7,086,344,581.80

Finding the Fourth Proportional to 20,172,547,765.80, 30,258,821,648.70 and 7,086,344,581.80

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Solution

The fourth proportional to 20,172,547,765.80, 30,258,821,648.70 and 7,086,344,581.80 is: 10,629,516,872.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172,547,765.80 : 30,258,821,648.70 = 7,086,344,581.80 : x
  2. Step 2: Convert to fraction form
    20,172,547,765.80/30,258,821,648.70 = 7,086,344,581.80/x
  3. Step 3: Cross multiply
    20,172,547,765.80x = 30,258,821,648.70 × 7,086,344,581.80
  4. Step 4: Simplify right side
    20,172,547,765.80x = 214,424,436,841,917,808,640
  5. Step 5: Solve for x
    x = 214,424,436,841,917,808,640/20,172,547,765.80
  6. Step 6: Final answer
    x = 10,629,516,872.70

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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.