Home / 820,399,905.63-1,132,151,925.11-449,121,937.01

Finding the Fourth Proportional to 820,399,905.63, 1,132,151,925.11 and 449,121,937.01

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Solution

The fourth proportional to 820,399,905.63, 1,132,151,925.11 and 449,121,937.01 is: 619,788,303.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,399,905.63 : 1,132,151,925.11 = 449,121,937.01 : x
  2. Step 2: Convert to fraction form
    820,399,905.63/1,132,151,925.11 = 449,121,937.01/x
  3. Step 3: Cross multiply
    820,399,905.63x = 1,132,151,925.11 × 449,121,937.01
  4. Step 4: Simplify right side
    820,399,905.63x = 508,474,265,589,342,848
  5. Step 5: Solve for x
    x = 508,474,265,589,342,848/820,399,905.63
  6. Step 6: Final answer
    x = 619,788,303.36

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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.