Home / 258,070,097.86-356,043,314.93-168,812,990.87

Finding the Fourth Proportional to 258,070,097.86, 356,043,314.93 and 168,812,990.87

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Solution

The fourth proportional to 258,070,097.86, 356,043,314.93 and 168,812,990.87 is: 232,900,817.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,070,097.86 : 356,043,314.93 = 168,812,990.87 : x
  2. Step 2: Convert to fraction form
    258,070,097.86/356,043,314.93 = 168,812,990.87/x
  3. Step 3: Cross multiply
    258,070,097.86x = 356,043,314.93 × 168,812,990.87
  4. Step 4: Simplify right side
    258,070,097.86x = 60,104,736,869,978,352
  5. Step 5: Solve for x
    x = 60,104,736,869,978,352/258,070,097.86
  6. Step 6: Final answer
    x = 232,900,817.91

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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.