Home / 918,896,203.88-1,268,080,731.78-501,217,461.80

Finding the Fourth Proportional to 918,896,203.88, 1,268,080,731.78 and 501,217,461.80

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Solution

The fourth proportional to 918,896,203.88, 1,268,080,731.78 and 501,217,461.80 is: 691,682,262.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,896,203.88 : 1,268,080,731.78 = 501,217,461.80 : x
  2. Step 2: Convert to fraction form
    918,896,203.88/1,268,080,731.78 = 501,217,461.80/x
  3. Step 3: Cross multiply
    918,896,203.88x = 1,268,080,731.78 × 501,217,461.80
  4. Step 4: Simplify right side
    918,896,203.88x = 635,584,205,740,258,176
  5. Step 5: Solve for x
    x = 635,584,205,740,258,176/918,896,203.88
  6. Step 6: Final answer
    x = 691,682,262.98

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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.