Home / 13,301,312,438.70-18,355,859,791.65-7,197,665,028.57

Finding the Fourth Proportional to 13,301,312,438.70, 18,355,859,791.65 and 7,197,665,028.57

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Solution

The fourth proportional to 13,301,312,438.70, 18,355,859,791.65 and 7,197,665,028.57 is: 9,932,804,052.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,301,312,438.70 : 18,355,859,791.65 = 7,197,665,028.57 : x
  2. Step 2: Convert to fraction form
    13,301,312,438.70/18,355,859,791.65 = 7,197,665,028.57/x
  3. Step 3: Cross multiply
    13,301,312,438.70x = 18,355,859,791.65 × 7,197,665,028.57
  4. Step 4: Simplify right side
    13,301,312,438.70x = 132,119,330,091,693,424,640
  5. Step 5: Solve for x
    x = 132,119,330,091,693,424,640/13,301,312,438.70
  6. Step 6: Final answer
    x = 9,932,804,052.27

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Double scale
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1.5x scale

Why These Related Problems?

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