Home / 1,257,520,506.84-1,735,337,602.62-721,760,356.80

Finding the Fourth Proportional to 1,257,520,506.84, 1,735,337,602.62 and 721,760,356.80

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Solution

The fourth proportional to 1,257,520,506.84, 1,735,337,602.62 and 721,760,356.80 is: 996,005,934.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,520,506.84 : 1,735,337,602.62 = 721,760,356.80 : x
  2. Step 2: Convert to fraction form
    1,257,520,506.84/1,735,337,602.62 = 721,760,356.80/x
  3. Step 3: Cross multiply
    1,257,520,506.84x = 1,735,337,602.62 × 721,760,356.80
  4. Step 4: Simplify right side
    1,257,520,506.84x = 1,252,497,887,235,467,776
  5. Step 5: Solve for x
    x = 1,252,497,887,235,467,776/1,257,520,506.84
  6. Step 6: Final answer
    x = 996,005,934.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.