Home / 128,485,659,539.76-177,314,462,434.65-70,616,090,572.44

Finding the Fourth Proportional to 128,485,659,539.76, 177,314,462,434.65 and 70,616,090,572.44

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Solution

The fourth proportional to 128,485,659,539.76, 177,314,462,434.65 and 70,616,090,572.44 is: 97,452,542,049.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,485,659,539.76 : 177,314,462,434.65 = 70,616,090,572.44 : x
  2. Step 2: Convert to fraction form
    128,485,659,539.76/177,314,462,434.65 = 70,616,090,572.44/x
  3. Step 3: Cross multiply
    128,485,659,539.76x = 177,314,462,434.65 × 70,616,090,572.44
  4. Step 4: Simplify right side
    128,485,659,539.76x = 12,521,254,139,088,754,180,096
  5. Step 5: Solve for x
    x = 12,521,254,139,088,754,180,096/128,485,659,539.76
  6. Step 6: Final answer
    x = 97,452,542,049.75

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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.