Home / 858,128,256,072.90-1,287,192,384,109.40-858,128,256,072.90

Finding the Fourth Proportional to 858,128,256,072.90, 1,287,192,384,109.40 and 858,128,256,072.90

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Solution

The fourth proportional to 858,128,256,072.90, 1,287,192,384,109.40 and 858,128,256,072.90 is: 1,287,192,384,109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,128,256,072.90 : 1,287,192,384,109.40 = 858,128,256,072.90 : x
  2. Step 2: Convert to fraction form
    858,128,256,072.90/1,287,192,384,109.40 = 858,128,256,072.90/x
  3. Step 3: Cross multiply
    858,128,256,072.90x = 1,287,192,384,109.40 × 858,128,256,072.90
  4. Step 4: Simplify right side
    858,128,256,072.90x = 1,104,576,155,806,117,862,047,744
  5. Step 5: Solve for x
    x = 1,104,576,155,806,117,862,047,744/858,128,256,072.90
  6. Step 6: Final answer
    x = 1,287,192,384,109.40

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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.