Home / 98,128,243,976.96-135,528,679,113.60-65,957,754,005.76

Finding the Fourth Proportional to 98,128,243,976.96, 135,528,679,113.60 and 65,957,754,005.76

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Solution

The fourth proportional to 98,128,243,976.96, 135,528,679,113.60 and 65,957,754,005.76 is: 91,096,782,286.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,128,243,976.96 : 135,528,679,113.60 = 65,957,754,005.76 : x
  2. Step 2: Convert to fraction form
    98,128,243,976.96/135,528,679,113.60 = 65,957,754,005.76/x
  3. Step 3: Cross multiply
    98,128,243,976.96x = 135,528,679,113.60 × 65,957,754,005.76
  4. Step 4: Simplify right side
    98,128,243,976.96x = 8,939,167,277,700,412,866,560
  5. Step 5: Solve for x
    x = 8,939,167,277,700,412,866,560/98,128,243,976.96
  6. Step 6: Final answer
    x = 91,096,782,286.24

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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.