Home / 159,717,875.65-220,410,815.37-86,379,017.65

Finding the Fourth Proportional to 159,717,875.65, 220,410,815.37 and 86,379,017.65

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Solution

The fourth proportional to 159,717,875.65, 220,410,815.37 and 86,379,017.65 is: 119,203,123.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,717,875.65 : 220,410,815.37 = 86,379,017.65 : x
  2. Step 2: Convert to fraction form
    159,717,875.65/220,410,815.37 = 86,379,017.65/x
  3. Step 3: Cross multiply
    159,717,875.65x = 220,410,815.37 × 86,379,017.65
  4. Step 4: Simplify right side
    159,717,875.65x = 19,038,869,711,096,124
  5. Step 5: Solve for x
    x = 19,038,869,711,096,124/159,717,875.65
  6. Step 6: Final answer
    x = 119,203,123.84

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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.