Home / 289,378,000.20-434,570,885.10-153,329,104.20

Finding the Fourth Proportional to 289,378,000.20, 434,570,885.10 and 153,329,104.20

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Solution

The fourth proportional to 289,378,000.20, 434,570,885.10 and 153,329,104.20 is: 230,260,643.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,378,000.20 : 434,570,885.10 = 153,329,104.20 : x
  2. Step 2: Convert to fraction form
    289,378,000.20/434,570,885.10 = 153,329,104.20/x
  3. Step 3: Cross multiply
    289,378,000.20x = 434,570,885.10 × 153,329,104.20
  4. Step 4: Simplify right side
    289,378,000.20x = 66,632,364,523,784,128
  5. Step 5: Solve for x
    x = 66,632,364,523,784,128/289,378,000.20
  6. Step 6: Final answer
    x = 230,260,643.44

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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.