Home / 128,485,659,536.88-177,314,462,430.71-70,616,090,569.59

Finding the Fourth Proportional to 128,485,659,536.88, 177,314,462,430.71 and 70,616,090,569.59

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Solution

The fourth proportional to 128,485,659,536.88, 177,314,462,430.71 and 70,616,090,569.59 is: 97,452,542,045.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,485,659,536.88 : 177,314,462,430.71 = 70,616,090,569.59 : x
  2. Step 2: Convert to fraction form
    128,485,659,536.88/177,314,462,430.71 = 70,616,090,569.59/x
  3. Step 3: Cross multiply
    128,485,659,536.88x = 177,314,462,430.71 × 70,616,090,569.59
  4. Step 4: Simplify right side
    128,485,659,536.88x = 12,521,254,138,304,295,600,128
  5. Step 5: Solve for x
    x = 12,521,254,138,304,295,600,128/128,485,659,536.88
  6. Step 6: Final answer
    x = 97,452,542,045.83

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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.