Home / 417,657,855.40-626,486,783.10-355,847,986.60

Finding the Fourth Proportional to 417,657,855.40, 626,486,783.10 and 355,847,986.60

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Solution

The fourth proportional to 417,657,855.40, 626,486,783.10 and 355,847,986.60 is: 533,771,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,657,855.40 : 626,486,783.10 = 355,847,986.60 : x
  2. Step 2: Convert to fraction form
    417,657,855.40/626,486,783.10 = 355,847,986.60/x
  3. Step 3: Cross multiply
    417,657,855.40x = 626,486,783.10 × 355,847,986.60
  4. Step 4: Simplify right side
    417,657,855.40x = 222,934,060,397,645,920
  5. Step 5: Solve for x
    x = 222,934,060,397,645,920/417,657,855.40
  6. Step 6: Final answer
    x = 533,771,979.90

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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.