Home / 258,938,942.86-388,653,970.70-160,272,191.55

Finding the Fourth Proportional to 258,938,942.86, 388,653,970.70 and 160,272,191.55

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Solution

The fourth proportional to 258,938,942.86, 388,653,970.70 and 160,272,191.55 is: 240,560,276.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,938,942.86 : 388,653,970.70 = 160,272,191.55 : x
  2. Step 2: Convert to fraction form
    258,938,942.86/388,653,970.70 = 160,272,191.55/x
  3. Step 3: Cross multiply
    258,938,942.86x = 388,653,970.70 × 160,272,191.55
  4. Step 4: Simplify right side
    258,938,942.86x = 62,290,423,640,556,624
  5. Step 5: Solve for x
    x = 62,290,423,640,556,624/258,938,942.86
  6. Step 6: Final answer
    x = 240,560,276.30

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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.