Home / 1,021,215,029.20-1,529,555,062.20-839,816,501.20

Finding the Fourth Proportional to 1,021,215,029.20, 1,529,555,062.20 and 839,816,501.20

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Solution

The fourth proportional to 1,021,215,029.20, 1,529,555,062.20 and 839,816,501.20 is: 1,257,860,043.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,215,029.20 : 1,529,555,062.20 = 839,816,501.20 : x
  2. Step 2: Convert to fraction form
    1,021,215,029.20/1,529,555,062.20 = 839,816,501.20/x
  3. Step 3: Cross multiply
    1,021,215,029.20x = 1,529,555,062.20 × 839,816,501.20
  4. Step 4: Simplify right side
    1,021,215,029.20x = 1,284,545,580,729,552,384
  5. Step 5: Solve for x
    x = 1,284,545,580,729,552,384/1,021,215,029.20
  6. Step 6: Final answer
    x = 1,257,860,043.18

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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.