Home / 1,490,259,620.20-2,235,389,430.30-508,794,381.40

Finding the Fourth Proportional to 1,490,259,620.20, 2,235,389,430.30 and 508,794,381.40

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Solution

The fourth proportional to 1,490,259,620.20, 2,235,389,430.30 and 508,794,381.40 is: 763,191,572.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,259,620.20 : 2,235,389,430.30 = 508,794,381.40 : x
  2. Step 2: Convert to fraction form
    1,490,259,620.20/2,235,389,430.30 = 508,794,381.40/x
  3. Step 3: Cross multiply
    1,490,259,620.20x = 2,235,389,430.30 × 508,794,381.40
  4. Step 4: Simplify right side
    1,490,259,620.20x = 1,137,353,582,377,586,944
  5. Step 5: Solve for x
    x = 1,137,353,582,377,586,944/1,490,259,620.20
  6. Step 6: Final answer
    x = 763,191,572.10

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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.