Home / 896,921,620.80-1,345,382,431.20-413,192,212.80

Finding the Fourth Proportional to 896,921,620.80, 1,345,382,431.20 and 413,192,212.80

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Solution

The fourth proportional to 896,921,620.80, 1,345,382,431.20 and 413,192,212.80 is: 619,788,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,921,620.80 : 1,345,382,431.20 = 413,192,212.80 : x
  2. Step 2: Convert to fraction form
    896,921,620.80/1,345,382,431.20 = 413,192,212.80/x
  3. Step 3: Cross multiply
    896,921,620.80x = 1,345,382,431.20 × 413,192,212.80
  4. Step 4: Simplify right side
    896,921,620.80x = 555,901,543,809,771,776
  5. Step 5: Solve for x
    x = 555,901,543,809,771,776/896,921,620.80
  6. Step 6: Final answer
    x = 619,788,319.20

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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.