Home / 1,372,810,363.20-2,059,215,544.80-821,812,334.40

Finding the Fourth Proportional to 1,372,810,363.20, 2,059,215,544.80 and 821,812,334.40

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Solution

The fourth proportional to 1,372,810,363.20, 2,059,215,544.80 and 821,812,334.40 is: 1,232,718,501.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,810,363.20 : 2,059,215,544.80 = 821,812,334.40 : x
  2. Step 2: Convert to fraction form
    1,372,810,363.20/2,059,215,544.80 = 821,812,334.40/x
  3. Step 3: Cross multiply
    1,372,810,363.20x = 2,059,215,544.80 × 821,812,334.40
  4. Step 4: Simplify right side
    1,372,810,363.20x = 1,692,288,733,904,855,808
  5. Step 5: Solve for x
    x = 1,692,288,733,904,855,808/1,372,810,363.20
  6. Step 6: Final answer
    x = 1,232,718,501.60

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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.