Home / 98,128,243,954.96-135,528,679,083.24-65,957,753,983.76

Finding the Fourth Proportional to 98,128,243,954.96, 135,528,679,083.24 and 65,957,753,983.76

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Solution

The fourth proportional to 98,128,243,954.96, 135,528,679,083.24 and 65,957,753,983.76 is: 91,096,782,255.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,128,243,954.96 : 135,528,679,083.24 = 65,957,753,983.76 : x
  2. Step 2: Convert to fraction form
    98,128,243,954.96/135,528,679,083.24 = 65,957,753,983.76/x
  3. Step 3: Cross multiply
    98,128,243,954.96x = 135,528,679,083.24 × 65,957,753,983.76
  4. Step 4: Simplify right side
    98,128,243,954.96x = 8,939,167,272,716,304,646,144
  5. Step 5: Solve for x
    x = 8,939,167,272,716,304,646,144/98,128,243,954.96
  6. Step 6: Final answer
    x = 91,096,782,255.87

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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.