Home / 1,078,060,422.40-1,617,090,633.60-387,990,188.80

Finding the Fourth Proportional to 1,078,060,422.40, 1,617,090,633.60 and 387,990,188.80

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Solution

The fourth proportional to 1,078,060,422.40, 1,617,090,633.60 and 387,990,188.80 is: 581,985,283.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,060,422.40 : 1,617,090,633.60 = 387,990,188.80 : x
  2. Step 2: Convert to fraction form
    1,078,060,422.40/1,617,090,633.60 = 387,990,188.80/x
  3. Step 3: Cross multiply
    1,078,060,422.40x = 1,617,090,633.60 × 387,990,188.80
  4. Step 4: Simplify right side
    1,078,060,422.40x = 627,415,300,237,175,552
  5. Step 5: Solve for x
    x = 627,415,300,237,175,552/1,078,060,422.40
  6. Step 6: Final answer
    x = 581,985,283.20

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Double scale
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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.