Home / 280,821,416.40-421,232,124.60-127,766,408.40

Finding the Fourth Proportional to 280,821,416.40, 421,232,124.60 and 127,766,408.40

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Solution

The fourth proportional to 280,821,416.40, 421,232,124.60 and 127,766,408.40 is: 191,649,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,821,416.40 : 421,232,124.60 = 127,766,408.40 : x
  2. Step 2: Convert to fraction form
    280,821,416.40/421,232,124.60 = 127,766,408.40/x
  3. Step 3: Cross multiply
    280,821,416.40x = 421,232,124.60 × 127,766,408.40
  4. Step 4: Simplify right side
    280,821,416.40x = 53,819,315,662,843,296
  5. Step 5: Solve for x
    x = 53,819,315,662,843,296/280,821,416.40
  6. Step 6: Final answer
    x = 191,649,612.60

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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.