Home / 139,628,691,869.82-209,472,452,881.83-45,294,273,802.14

Finding the Fourth Proportional to 139,628,691,869.82, 209,472,452,881.83 and 45,294,273,802.14

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Solution

The fourth proportional to 139,628,691,869.82, 209,472,452,881.83 and 45,294,273,802.14 is: 67,950,952,685.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,628,691,869.82 : 209,472,452,881.83 = 45,294,273,802.14 : x
  2. Step 2: Convert to fraction form
    139,628,691,869.82/209,472,452,881.83 = 45,294,273,802.14/x
  3. Step 3: Cross multiply
    139,628,691,869.82x = 209,472,452,881.83 × 45,294,273,802.14
  4. Step 4: Simplify right side
    139,628,691,869.82x = 9,487,902,634,835,477,266,432
  5. Step 5: Solve for x
    x = 9,487,902,634,835,477,266,432/139,628,691,869.82
  6. Step 6: Final answer
    x = 67,950,952,685.87

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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.