Home / 1,138,701,190.40-1,704,650,563.20-678,402,425.60

Finding the Fourth Proportional to 1,138,701,190.40, 1,704,650,563.20 and 678,402,425.60

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Solution

The fourth proportional to 1,138,701,190.40, 1,704,650,563.20 and 678,402,425.60 is: 1,015,577,296.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,701,190.40 : 1,704,650,563.20 = 678,402,425.60 : x
  2. Step 2: Convert to fraction form
    1,138,701,190.40/1,704,650,563.20 = 678,402,425.60/x
  3. Step 3: Cross multiply
    1,138,701,190.40x = 1,704,650,563.20 × 678,402,425.60
  4. Step 4: Simplify right side
    1,138,701,190.40x = 1,156,439,076,875,286,272
  5. Step 5: Solve for x
    x = 1,156,439,076,875,286,272/1,138,701,190.40
  6. Step 6: Final answer
    x = 1,015,577,296.86

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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.