Home / 260,636,685-390,765,474.04-122,391,055.48

Finding the Fourth Proportional to 260,636,685, 390,765,474.04 and 122,391,055.48

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Solution

The fourth proportional to 260,636,685, 390,765,474.04 and 122,391,055.48 is: 183,497,571.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,636,685 : 390,765,474.04 = 122,391,055.48 : x
  2. Step 2: Convert to fraction form
    260,636,685/390,765,474.04 = 122,391,055.48/x
  3. Step 3: Cross multiply
    260,636,685x = 390,765,474.04 × 122,391,055.48
  4. Step 4: Simplify right side
    260,636,685x = 47,826,198,812,898,144
  5. Step 5: Solve for x
    x = 47,826,198,812,898,144/260,636,685
  6. Step 6: Final answer
    x = 183,497,571.77

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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.