Home / 99,840,819.36-137,785,653-55,788,887.52

Finding the Fourth Proportional to 99,840,819.36, 137,785,653 and 55,788,887.52

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Solution

The fourth proportional to 99,840,819.36, 137,785,653 and 55,788,887.52 is: 76,991,638.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,840,819.36 : 137,785,653 = 55,788,887.52 : x
  2. Step 2: Convert to fraction form
    99,840,819.36/137,785,653 = 55,788,887.52/x
  3. Step 3: Cross multiply
    99,840,819.36x = 137,785,653 × 55,788,887.52
  4. Step 4: Simplify right side
    99,840,819.36x = 7,686,908,297,086,751
  5. Step 5: Solve for x
    x = 7,686,908,297,086,751/99,840,819.36
  6. Step 6: Final answer
    x = 76,991,638.75

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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.