Home / 99,854,558.10-149,781,837.15-81,714,705.30

Finding the Fourth Proportional to 99,854,558.10, 149,781,837.15 and 81,714,705.30

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Solution

The fourth proportional to 99,854,558.10, 149,781,837.15 and 81,714,705.30 is: 122,572,057.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,854,558.10 : 149,781,837.15 = 81,714,705.30 : x
  2. Step 2: Convert to fraction form
    99,854,558.10/149,781,837.15 = 81,714,705.30/x
  3. Step 3: Cross multiply
    99,854,558.10x = 149,781,837.15 × 81,714,705.30
  4. Step 4: Simplify right side
    99,854,558.10x = 12,239,378,682,004,842
  5. Step 5: Solve for x
    x = 12,239,378,682,004,842/99,854,558.10
  6. Step 6: Final answer
    x = 122,572,057.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.