Home / 42,385,205.75-63,485,115.12-30,051,784.22

Finding the Fourth Proportional to 42,385,205.75, 63,485,115.12 and 30,051,784.22

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Solution

The fourth proportional to 42,385,205.75, 63,485,115.12 and 30,051,784.22 is: 45,011,955.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,385,205.75 : 63,485,115.12 = 30,051,784.22 : x
  2. Step 2: Convert to fraction form
    42,385,205.75/63,485,115.12 = 30,051,784.22/x
  3. Step 3: Cross multiply
    42,385,205.75x = 63,485,115.12 × 30,051,784.22
  4. Step 4: Simplify right side
    42,385,205.75x = 1,907,840,980,450,673.75
  5. Step 5: Solve for x
    x = 1,907,840,980,450,673.75/42,385,205.75
  6. Step 6: Final answer
    x = 45,011,955.16

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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.