Home / 2,778,381,931.60-4,163,989,716.60-2,128,930,411.60

Finding the Fourth Proportional to 2,778,381,931.60, 4,163,989,716.60 and 2,128,930,411.60

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Solution

The fourth proportional to 2,778,381,931.60, 4,163,989,716.60 and 2,128,930,411.60 is: 3,190,650,011.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778,381,931.60 : 4,163,989,716.60 = 2,128,930,411.60 : x
  2. Step 2: Convert to fraction form
    2,778,381,931.60/4,163,989,716.60 = 2,128,930,411.60/x
  3. Step 3: Cross multiply
    2,778,381,931.60x = 4,163,989,716.60 × 2,128,930,411.60
  4. Step 4: Simplify right side
    2,778,381,931.60x = 8,864,844,341,259,404,288
  5. Step 5: Solve for x
    x = 8,864,844,341,259,404,288/2,778,381,931.60
  6. Step 6: Final answer
    x = 3,190,650,011.23

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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.