Home / 20,718,675.66-31,072,710.60-6,142,186.59

Finding the Fourth Proportional to 20,718,675.66, 31,072,710.60 and 6,142,186.59

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Solution

The fourth proportional to 20,718,675.66, 31,072,710.60 and 6,142,186.59 is: 9,211,707.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718,675.66 : 31,072,710.60 = 6,142,186.59 : x
  2. Step 2: Convert to fraction form
    20,718,675.66/31,072,710.60 = 6,142,186.59/x
  3. Step 3: Cross multiply
    20,718,675.66x = 31,072,710.60 × 6,142,186.59
  4. Step 4: Simplify right side
    20,718,675.66x = 190,854,386,362,270.84
  5. Step 5: Solve for x
    x = 190,854,386,362,270.84/20,718,675.66
  6. Step 6: Final answer
    x = 9,211,707.81

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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.