Home / 306,434,872.80-459,652,309.20-191,549,138.40

Finding the Fourth Proportional to 306,434,872.80, 459,652,309.20 and 191,549,138.40

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Solution

The fourth proportional to 306,434,872.80, 459,652,309.20 and 191,549,138.40 is: 287,323,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,434,872.80 : 459,652,309.20 = 191,549,138.40 : x
  2. Step 2: Convert to fraction form
    306,434,872.80/459,652,309.20 = 191,549,138.40/x
  3. Step 3: Cross multiply
    306,434,872.80x = 459,652,309.20 × 191,549,138.40
  4. Step 4: Simplify right side
    306,434,872.80x = 88,046,003,790,830,400
  5. Step 5: Solve for x
    x = 88,046,003,790,830,400/306,434,872.80
  6. Step 6: Final answer
    x = 287,323,707.60

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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.