Home / 258,973,999.20-388,460,998.80-230,756,450.40

Finding the Fourth Proportional to 258,973,999.20, 388,460,998.80 and 230,756,450.40

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Solution

The fourth proportional to 258,973,999.20, 388,460,998.80 and 230,756,450.40 is: 346,134,675.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,973,999.20 : 388,460,998.80 = 230,756,450.40 : x
  2. Step 2: Convert to fraction form
    258,973,999.20/388,460,998.80 = 230,756,450.40/x
  3. Step 3: Cross multiply
    258,973,999.20x = 388,460,998.80 × 230,756,450.40
  4. Step 4: Simplify right side
    258,973,999.20x = 89,639,881,201,926,672
  5. Step 5: Solve for x
    x = 89,639,881,201,926,672/258,973,999.20
  6. Step 6: Final answer
    x = 346,134,675.60

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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.