Home / 1,105,907,482.12-1,658,849,868.24-639,271,988.44

Finding the Fourth Proportional to 1,105,907,482.12, 1,658,849,868.24 and 639,271,988.44

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Solution

The fourth proportional to 1,105,907,482.12, 1,658,849,868.24 and 639,271,988.44 is: 958,901,418.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,907,482.12 : 1,658,849,868.24 = 639,271,988.44 : x
  2. Step 2: Convert to fraction form
    1,105,907,482.12/1,658,849,868.24 = 639,271,988.44/x
  3. Step 3: Cross multiply
    1,105,907,482.12x = 1,658,849,868.24 × 639,271,988.44
  4. Step 4: Simplify right side
    1,105,907,482.12x = 1,060,456,253,793,216,896
  5. Step 5: Solve for x
    x = 1,060,456,253,793,216,896/1,105,907,482.12
  6. Step 6: Final answer
    x = 958,901,418.91

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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.