Home / 1,490,259,619.20-2,235,389,428.80-508,794,380.40

Finding the Fourth Proportional to 1,490,259,619.20, 2,235,389,428.80 and 508,794,380.40

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Solution

The fourth proportional to 1,490,259,619.20, 2,235,389,428.80 and 508,794,380.40 is: 763,191,570.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,259,619.20 : 2,235,389,428.80 = 508,794,380.40 : x
  2. Step 2: Convert to fraction form
    1,490,259,619.20/2,235,389,428.80 = 508,794,380.40/x
  3. Step 3: Cross multiply
    1,490,259,619.20x = 2,235,389,428.80 × 508,794,380.40
  4. Step 4: Simplify right side
    1,490,259,619.20x = 1,137,353,579,379,005,952
  5. Step 5: Solve for x
    x = 1,137,353,579,379,005,952/1,490,259,619.20
  6. Step 6: Final answer
    x = 763,191,570.60

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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.