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Finding the Fourth Proportional to 1,375,490,492.80, 2,063,235,739.20 and 940,134,025.60

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Solution

The fourth proportional to 1,375,490,492.80, 2,063,235,739.20 and 940,134,025.60 is: 1,410,201,038.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,490,492.80 : 2,063,235,739.20 = 940,134,025.60 : x
  2. Step 2: Convert to fraction form
    1,375,490,492.80/2,063,235,739.20 = 940,134,025.60/x
  3. Step 3: Cross multiply
    1,375,490,492.80x = 2,063,235,739.20 × 940,134,025.60
  4. Step 4: Simplify right side
    1,375,490,492.80x = 1,939,718,121,255,887,872
  5. Step 5: Solve for x
    x = 1,939,718,121,255,887,872/1,375,490,492.80
  6. Step 6: Final answer
    x = 1,410,201,038.40

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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.