Home / 440,346,811.60-660,520,217.40-133,638,432.40

Finding the Fourth Proportional to 440,346,811.60, 660,520,217.40 and 133,638,432.40

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Solution

The fourth proportional to 440,346,811.60, 660,520,217.40 and 133,638,432.40 is: 200,457,648.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,346,811.60 : 660,520,217.40 = 133,638,432.40 : x
  2. Step 2: Convert to fraction form
    440,346,811.60/660,520,217.40 = 133,638,432.40/x
  3. Step 3: Cross multiply
    440,346,811.60x = 660,520,217.40 × 133,638,432.40
  4. Step 4: Simplify right side
    440,346,811.60x = 88,270,886,421,843,200
  5. Step 5: Solve for x
    x = 88,270,886,421,843,200/440,346,811.60
  6. Step 6: Final answer
    x = 200,457,648.60

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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.