Home / 130,910,971.80-196,334,962.74-40,035,348.12

Finding the Fourth Proportional to 130,910,971.80, 196,334,962.74 and 40,035,348.12

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Solution

The fourth proportional to 130,910,971.80, 196,334,962.74 and 40,035,348.12 is: 60,043,390.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,910,971.80 : 196,334,962.74 = 40,035,348.12 : x
  2. Step 2: Convert to fraction form
    130,910,971.80/196,334,962.74 = 40,035,348.12/x
  3. Step 3: Cross multiply
    130,910,971.80x = 196,334,962.74 × 40,035,348.12
  4. Step 4: Simplify right side
    130,910,971.80x = 7,860,338,581,423,129
  5. Step 5: Solve for x
    x = 7,860,338,581,423,129/130,910,971.80
  6. Step 6: Final answer
    x = 60,043,390.35

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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.