Home / 1,055,702,421.60-1,582,209,939.60-940,144,840.80

Finding the Fourth Proportional to 1,055,702,421.60, 1,582,209,939.60 and 940,144,840.80

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Solution

The fourth proportional to 1,055,702,421.60, 1,582,209,939.60 and 940,144,840.80 is: 1,409,020,649.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,702,421.60 : 1,582,209,939.60 = 940,144,840.80 : x
  2. Step 2: Convert to fraction form
    1,055,702,421.60/1,582,209,939.60 = 940,144,840.80/x
  3. Step 3: Cross multiply
    1,055,702,421.60x = 1,582,209,939.60 × 940,144,840.80
  4. Step 4: Simplify right side
    1,055,702,421.60x = 1,487,506,511,777,419,520
  5. Step 5: Solve for x
    x = 1,487,506,511,777,419,520/1,055,702,421.60
  6. Step 6: Final answer
    x = 1,409,020,649.52

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Double scale
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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.