Home / 13,283,155,369.70-18,330,972,190.15-7,931,183,415.06

Finding the Fourth Proportional to 13,283,155,369.70, 18,330,972,190.15 and 7,931,183,415.06

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Solution

The fourth proportional to 13,283,155,369.70, 18,330,972,190.15 and 7,931,183,415.06 is: 10,945,163,146.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283,155,369.70 : 18,330,972,190.15 = 7,931,183,415.06 : x
  2. Step 2: Convert to fraction form
    13,283,155,369.70/18,330,972,190.15 = 7,931,183,415.06/x
  3. Step 3: Cross multiply
    13,283,155,369.70x = 18,330,972,190.15 × 7,931,183,415.06
  4. Step 4: Simplify right side
    13,283,155,369.70x = 145,386,302,616,471,928,832
  5. Step 5: Solve for x
    x = 145,386,302,616,471,928,832/13,283,155,369.70
  6. Step 6: Final answer
    x = 10,945,163,146.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.