Home / 139,828,517.04-209,751,182.80-42,785,065.38

Finding the Fourth Proportional to 139,828,517.04, 209,751,182.80 and 42,785,065.38

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Solution

The fourth proportional to 139,828,517.04, 209,751,182.80 and 42,785,065.38 is: 64,180,170.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,828,517.04 : 209,751,182.80 = 42,785,065.38 : x
  2. Step 2: Convert to fraction form
    139,828,517.04/209,751,182.80 = 42,785,065.38/x
  3. Step 3: Cross multiply
    139,828,517.04x = 209,751,182.80 × 42,785,065.38
  4. Step 4: Simplify right side
    139,828,517.04x = 8,974,218,069,630,333
  5. Step 5: Solve for x
    x = 8,974,218,069,630,333/139,828,517.04
  6. Step 6: Final answer
    x = 64,180,170.54

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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.