Home / 30,827,705.56-42,542,218.86-18,437,798.77

Finding the Fourth Proportional to 30,827,705.56, 42,542,218.86 and 18,437,798.77

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Solution

The fourth proportional to 30,827,705.56, 42,542,218.86 and 18,437,798.77 is: 25,444,153.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,827,705.56 : 42,542,218.86 = 18,437,798.77 : x
  2. Step 2: Convert to fraction form
    30,827,705.56/42,542,218.86 = 18,437,798.77/x
  3. Step 3: Cross multiply
    30,827,705.56x = 42,542,218.86 × 18,437,798.77
  4. Step 4: Simplify right side
    30,827,705.56x = 784,384,870,569,978.75
  5. Step 5: Solve for x
    x = 784,384,870,569,978.75/30,827,705.56
  6. Step 6: Final answer
    x = 25,444,153.44

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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.