Home / 3,920,078,416.60-5,409,708,993.28-2,135,931,869.62

Finding the Fourth Proportional to 3,920,078,416.60, 5,409,708,993.28 and 2,135,931,869.62

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Solution

The fourth proportional to 3,920,078,416.60, 5,409,708,993.28 and 2,135,931,869.62 is: 2,947,586,404.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,920,078,416.60 : 5,409,708,993.28 = 2,135,931,869.62 : x
  2. Step 2: Convert to fraction form
    3,920,078,416.60/5,409,708,993.28 = 2,135,931,869.62/x
  3. Step 3: Cross multiply
    3,920,078,416.60x = 5,409,708,993.28 × 2,135,931,869.62
  4. Step 4: Simplify right side
    3,920,078,416.60x = 11,554,769,844,116,676,608
  5. Step 5: Solve for x
    x = 11,554,769,844,116,676,608/3,920,078,416.60
  6. Step 6: Final answer
    x = 2,947,586,404.19

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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.