Home / 1,119,753,781.80-1,679,630,672.70-392,648,015.40

Finding the Fourth Proportional to 1,119,753,781.80, 1,679,630,672.70 and 392,648,015.40

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Solution

The fourth proportional to 1,119,753,781.80, 1,679,630,672.70 and 392,648,015.40 is: 588,972,023.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,753,781.80 : 1,679,630,672.70 = 392,648,015.40 : x
  2. Step 2: Convert to fraction form
    1,119,753,781.80/1,679,630,672.70 = 392,648,015.40/x
  3. Step 3: Cross multiply
    1,119,753,781.80x = 1,679,630,672.70 × 392,648,015.40
  4. Step 4: Simplify right side
    1,119,753,781.80x = 659,503,650,240,621,952
  5. Step 5: Solve for x
    x = 659,503,650,240,621,952/1,119,753,781.80
  6. Step 6: Final answer
    x = 588,972,023.10

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1.5x scale

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.