Home / 698,031,074.93-963,282,648.44-384,770,520.28

Finding the Fourth Proportional to 698,031,074.93, 963,282,648.44 and 384,770,520.28

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Solution

The fourth proportional to 698,031,074.93, 963,282,648.44 and 384,770,520.28 is: 530,983,188.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,031,074.93 : 963,282,648.44 = 384,770,520.28 : x
  2. Step 2: Convert to fraction form
    698,031,074.93/963,282,648.44 = 384,770,520.28/x
  3. Step 3: Cross multiply
    698,031,074.93x = 963,282,648.44 × 384,770,520.28
  4. Step 4: Simplify right side
    698,031,074.93x = 370,642,765,815,508,800
  5. Step 5: Solve for x
    x = 370,642,765,815,508,800/698,031,074.93
  6. Step 6: Final answer
    x = 530,983,188.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.