Home / 149,088,999.18-205,740,362.16-87,219,818.94

Finding the Fourth Proportional to 149,088,999.18, 205,740,362.16 and 87,219,818.94

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Solution

The fourth proportional to 149,088,999.18, 205,740,362.16 and 87,219,818.94 is: 120,361,912.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,088,999.18 : 205,740,362.16 = 87,219,818.94 : x
  2. Step 2: Convert to fraction form
    149,088,999.18/205,740,362.16 = 87,219,818.94/x
  3. Step 3: Cross multiply
    149,088,999.18x = 205,740,362.16 × 87,219,818.94
  4. Step 4: Simplify right side
    149,088,999.18x = 17,944,637,136,245,226
  5. Step 5: Solve for x
    x = 17,944,637,136,245,226/149,088,999.18
  6. Step 6: Final answer
    x = 120,361,912.92

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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.