Home / 68,124,042.80-102,186,064.20-57,920,375.60

Finding the Fourth Proportional to 68,124,042.80, 102,186,064.20 and 57,920,375.60

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Solution

The fourth proportional to 68,124,042.80, 102,186,064.20 and 57,920,375.60 is: 86,880,563.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,124,042.80 : 102,186,064.20 = 57,920,375.60 : x
  2. Step 2: Convert to fraction form
    68,124,042.80/102,186,064.20 = 57,920,375.60/x
  3. Step 3: Cross multiply
    68,124,042.80x = 102,186,064.20 × 57,920,375.60
  4. Step 4: Simplify right side
    68,124,042.80x = 5,918,655,219,549,714
  5. Step 5: Solve for x
    x = 5,918,655,219,549,714/68,124,042.80
  6. Step 6: Final answer
    x = 86,880,563.40

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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.