Home / 209,012,479.04-313,343,342.88-92,409,009.20

Finding the Fourth Proportional to 209,012,479.04, 313,343,342.88 and 92,409,009.20

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Solution

The fourth proportional to 209,012,479.04, 313,343,342.88 and 92,409,009.20 is: 138,535,976.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,012,479.04 : 313,343,342.88 = 92,409,009.20 : x
  2. Step 2: Convert to fraction form
    209,012,479.04/313,343,342.88 = 92,409,009.20/x
  3. Step 3: Cross multiply
    209,012,479.04x = 313,343,342.88 × 92,409,009.20
  4. Step 4: Simplify right side
    209,012,479.04x = 28,955,747,854,956,676
  5. Step 5: Solve for x
    x = 28,955,747,854,956,676/209,012,479.04
  6. Step 6: Final answer
    x = 138,535,976.36

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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.