Home / 129,290,504.09-178,424,663.63-70,556,952.34

Finding the Fourth Proportional to 129,290,504.09, 178,424,663.63 and 70,556,952.34

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Solution

The fourth proportional to 129,290,504.09, 178,424,663.63 and 70,556,952.34 is: 97,370,650.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,290,504.09 : 178,424,663.63 = 70,556,952.34 : x
  2. Step 2: Convert to fraction form
    129,290,504.09/178,424,663.63 = 70,556,952.34/x
  3. Step 3: Cross multiply
    129,290,504.09x = 178,424,663.63 × 70,556,952.34
  4. Step 4: Simplify right side
    129,290,504.09x = 12,589,100,486,889,048
  5. Step 5: Solve for x
    x = 12,589,100,486,889,048/129,290,504.09
  6. Step 6: Final answer
    x = 97,370,650.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.