Home / 808,970,107.20-1,213,455,160.80-800,907,950.40

Finding the Fourth Proportional to 808,970,107.20, 1,213,455,160.80 and 800,907,950.40

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Solution

The fourth proportional to 808,970,107.20, 1,213,455,160.80 and 800,907,950.40 is: 1,201,361,925.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,970,107.20 : 1,213,455,160.80 = 800,907,950.40 : x
  2. Step 2: Convert to fraction form
    808,970,107.20/1,213,455,160.80 = 800,907,950.40/x
  3. Step 3: Cross multiply
    808,970,107.20x = 1,213,455,160.80 × 800,907,950.40
  4. Step 4: Simplify right side
    808,970,107.20x = 971,865,885,738,630,400
  5. Step 5: Solve for x
    x = 971,865,885,738,630,400/808,970,107.20
  6. Step 6: Final answer
    x = 1,201,361,925.60

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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.