Home / 129,026,809.40-193,390,914.90-52,311,903.80

Finding the Fourth Proportional to 129,026,809.40, 193,390,914.90 and 52,311,903.80

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Solution

The fourth proportional to 129,026,809.40, 193,390,914.90 and 52,311,903.80 is: 78,407,324.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,026,809.40 : 193,390,914.90 = 52,311,903.80 : x
  2. Step 2: Convert to fraction form
    129,026,809.40/193,390,914.90 = 52,311,903.80/x
  3. Step 3: Cross multiply
    129,026,809.40x = 193,390,914.90 × 52,311,903.80
  4. Step 4: Simplify right side
    129,026,809.40x = 10,116,646,936,042,786
  5. Step 5: Solve for x
    x = 10,116,646,936,042,786/129,026,809.40
  6. Step 6: Final answer
    x = 78,407,324.67

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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.