Home / 42,901,825.60-64,266,574.52-19,840,435.84

Finding the Fourth Proportional to 42,901,825.60, 64,266,574.52 and 19,840,435.84

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Solution

The fourth proportional to 42,901,825.60, 64,266,574.52 and 19,840,435.84 is: 29,720,806.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,901,825.60 : 64,266,574.52 = 19,840,435.84 : x
  2. Step 2: Convert to fraction form
    42,901,825.60/64,266,574.52 = 19,840,435.84/x
  3. Step 3: Cross multiply
    42,901,825.60x = 64,266,574.52 × 19,840,435.84
  4. Step 4: Simplify right side
    42,901,825.60x = 1,275,076,848,420,638.75
  5. Step 5: Solve for x
    x = 1,275,076,848,420,638.75/42,901,825.60
  6. Step 6: Final answer
    x = 29,720,806.30

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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.