Home / 30,827,703.56-42,542,216.10-18,437,796.77

Finding the Fourth Proportional to 30,827,703.56, 42,542,216.10 and 18,437,796.77

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Solution

The fourth proportional to 30,827,703.56, 42,542,216.10 and 18,437,796.77 is: 25,444,150.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,827,703.56 : 42,542,216.10 = 18,437,796.77 : x
  2. Step 2: Convert to fraction form
    30,827,703.56/42,542,216.10 = 18,437,796.77/x
  3. Step 3: Cross multiply
    30,827,703.56x = 42,542,216.10 × 18,437,796.77
  4. Step 4: Simplify right side
    30,827,703.56x = 784,384,734,384,511
  5. Step 5: Solve for x
    x = 784,384,734,384,511/30,827,703.56
  6. Step 6: Final answer
    x = 25,444,150.68

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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.