Home / 72,768,009.60-109,152,014.40-29,615,000.40

Finding the Fourth Proportional to 72,768,009.60, 109,152,014.40 and 29,615,000.40

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Solution

The fourth proportional to 72,768,009.60, 109,152,014.40 and 29,615,000.40 is: 44,422,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,768,009.60 : 109,152,014.40 = 29,615,000.40 : x
  2. Step 2: Convert to fraction form
    72,768,009.60/109,152,014.40 = 29,615,000.40/x
  3. Step 3: Cross multiply
    72,768,009.60x = 109,152,014.40 × 29,615,000.40
  4. Step 4: Simplify right side
    72,768,009.60x = 3,232,536,950,116,806
  5. Step 5: Solve for x
    x = 3,232,536,950,116,806/72,768,009.60
  6. Step 6: Final answer
    x = 44,422,500.60

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Similar ratio
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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.