Home / 289,680,415.40-434,520,623.10-125,890,299.20

Finding the Fourth Proportional to 289,680,415.40, 434,520,623.10 and 125,890,299.20

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Solution

The fourth proportional to 289,680,415.40, 434,520,623.10 and 125,890,299.20 is: 188,835,448.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,680,415.40 : 434,520,623.10 = 125,890,299.20 : x
  2. Step 2: Convert to fraction form
    289,680,415.40/434,520,623.10 = 125,890,299.20/x
  3. Step 3: Cross multiply
    289,680,415.40x = 434,520,623.10 × 125,890,299.20
  4. Step 4: Simplify right side
    289,680,415.40x = 54,701,931,250,629,432
  5. Step 5: Solve for x
    x = 54,701,931,250,629,432/289,680,415.40
  6. Step 6: Final answer
    x = 188,835,448.80

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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.