Home / 858,128,256,068.90-1,287,192,384,103.40-858,128,256,068.90

Finding the Fourth Proportional to 858,128,256,068.90, 1,287,192,384,103.40 and 858,128,256,068.90

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Solution

The fourth proportional to 858,128,256,068.90, 1,287,192,384,103.40 and 858,128,256,068.90 is: 1,287,192,384,103.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,128,256,068.90 : 1,287,192,384,103.40 = 858,128,256,068.90 : x
  2. Step 2: Convert to fraction form
    858,128,256,068.90/1,287,192,384,103.40 = 858,128,256,068.90/x
  3. Step 3: Cross multiply
    858,128,256,068.90x = 1,287,192,384,103.40 × 858,128,256,068.90
  4. Step 4: Simplify right side
    858,128,256,068.90x = 1,104,576,155,795,820,275,302,400
  5. Step 5: Solve for x
    x = 1,104,576,155,795,820,275,302,400/858,128,256,068.90
  6. Step 6: Final answer
    x = 1,287,192,384,103.40

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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.