Home / 1,188,191,853.90-1,782,287,780.85-314,928,002.70

Finding the Fourth Proportional to 1,188,191,853.90, 1,782,287,780.85 and 314,928,002.70

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Solution

The fourth proportional to 1,188,191,853.90, 1,782,287,780.85 and 314,928,002.70 is: 472,392,004.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,191,853.90 : 1,782,287,780.85 = 314,928,002.70 : x
  2. Step 2: Convert to fraction form
    1,188,191,853.90/1,782,287,780.85 = 314,928,002.70/x
  3. Step 3: Cross multiply
    1,188,191,853.90x = 1,782,287,780.85 × 314,928,002.70
  4. Step 4: Simplify right side
    1,188,191,853.90x = 561,292,331,059,705,728
  5. Step 5: Solve for x
    x = 561,292,331,059,705,728/1,188,191,853.90
  6. Step 6: Final answer
    x = 472,392,004.05

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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.