Home / 489,402,012.80-734,103,019.20-271,723,779.20

Finding the Fourth Proportional to 489,402,012.80, 734,103,019.20 and 271,723,779.20

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Solution

The fourth proportional to 489,402,012.80, 734,103,019.20 and 271,723,779.20 is: 407,585,668.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,402,012.80 : 734,103,019.20 = 271,723,779.20 : x
  2. Step 2: Convert to fraction form
    489,402,012.80/734,103,019.20 = 271,723,779.20/x
  3. Step 3: Cross multiply
    489,402,012.80x = 734,103,019.20 × 271,723,779.20
  4. Step 4: Simplify right side
    489,402,012.80x = 199,473,246,699,154,176
  5. Step 5: Solve for x
    x = 199,473,246,699,154,176/489,402,012.80
  6. Step 6: Final answer
    x = 407,585,668.80

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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.