Home / 130,507,723.63-180,097,067.19-71,770,388.76

Finding the Fourth Proportional to 130,507,723.63, 180,097,067.19 and 71,770,388.76

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Solution

The fourth proportional to 130,507,723.63, 180,097,067.19 and 71,770,388.76 is: 99,041,161.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,507,723.63 : 180,097,067.19 = 71,770,388.76 : x
  2. Step 2: Convert to fraction form
    130,507,723.63/180,097,067.19 = 71,770,388.76/x
  3. Step 3: Cross multiply
    130,507,723.63x = 180,097,067.19 × 71,770,388.76
  4. Step 4: Simplify right side
    130,507,723.63x = 12,925,636,526,762,142
  5. Step 5: Solve for x
    x = 12,925,636,526,762,142/130,507,723.63
  6. Step 6: Final answer
    x = 99,041,161.45

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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.