Home / 109,848,209.40-164,772,314.10-85,605,314.40

Finding the Fourth Proportional to 109,848,209.40, 164,772,314.10 and 85,605,314.40

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Solution

The fourth proportional to 109,848,209.40, 164,772,314.10 and 85,605,314.40 is: 128,407,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,848,209.40 : 164,772,314.10 = 85,605,314.40 : x
  2. Step 2: Convert to fraction form
    109,848,209.40/164,772,314.10 = 85,605,314.40/x
  3. Step 3: Cross multiply
    109,848,209.40x = 164,772,314.10 × 85,605,314.40
  4. Step 4: Simplify right side
    109,848,209.40x = 14,105,385,752,946,054
  5. Step 5: Solve for x
    x = 14,105,385,752,946,054/109,848,209.40
  6. Step 6: Final answer
    x = 128,407,971.60

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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.