Home / 30,072,609.01-45,127,889.25-12,800,782.45

Finding the Fourth Proportional to 30,072,609.01, 45,127,889.25 and 12,800,782.45

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Solution

The fourth proportional to 30,072,609.01, 45,127,889.25 and 12,800,782.45 is: 19,209,250.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,072,609.01 : 45,127,889.25 = 12,800,782.45 : x
  2. Step 2: Convert to fraction form
    30,072,609.01/45,127,889.25 = 12,800,782.45/x
  3. Step 3: Cross multiply
    30,072,609.01x = 45,127,889.25 × 12,800,782.45
  4. Step 4: Simplify right side
    30,072,609.01x = 577,672,292,716,943.62
  5. Step 5: Solve for x
    x = 577,672,292,716,943.62/30,072,609.01
  6. Step 6: Final answer
    x = 19,209,250.93

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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.