Home / 577,377,621.40-866,066,432.10-393,711,611.80

Finding the Fourth Proportional to 577,377,621.40, 866,066,432.10 and 393,711,611.80

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Solution

The fourth proportional to 577,377,621.40, 866,066,432.10 and 393,711,611.80 is: 590,567,417.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,377,621.40 : 866,066,432.10 = 393,711,611.80 : x
  2. Step 2: Convert to fraction form
    577,377,621.40/866,066,432.10 = 393,711,611.80/x
  3. Step 3: Cross multiply
    577,377,621.40x = 866,066,432.10 × 393,711,611.80
  4. Step 4: Simplify right side
    577,377,621.40x = 340,980,410,907,966,272
  5. Step 5: Solve for x
    x = 340,980,410,907,966,272/577,377,621.40
  6. Step 6: Final answer
    x = 590,567,417.70

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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.