Home / 19,120,307.72-28,688,939.03-10,020,242.03

Finding the Fourth Proportional to 19,120,307.72, 28,688,939.03 and 10,020,242.03

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Solution

The fourth proportional to 19,120,307.72, 28,688,939.03 and 10,020,242.03 is: 15,034,805.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120,307.72 : 28,688,939.03 = 10,020,242.03 : x
  2. Step 2: Convert to fraction form
    19,120,307.72/28,688,939.03 = 10,020,242.03/x
  3. Step 3: Cross multiply
    19,120,307.72x = 28,688,939.03 × 10,020,242.03
  4. Step 4: Simplify right side
    19,120,307.72x = 287,470,112,546,119.31
  5. Step 5: Solve for x
    x = 287,470,112,546,119.31/19,120,307.72
  6. Step 6: Final answer
    x = 15,034,805.76

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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.