Home / 410,431,470,911.47-615,749,749,181.35-289,655,842,375.45

Finding the Fourth Proportional to 410,431,470,911.47, 615,749,749,181.35 and 289,655,842,375.45

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Solution

The fourth proportional to 410,431,470,911.47, 615,749,749,181.35 and 289,655,842,375.45 is: 434,556,131,613.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,431,470,911.47 : 615,749,749,181.35 = 289,655,842,375.45 : x
  2. Step 2: Convert to fraction form
    410,431,470,911.47/615,749,749,181.35 = 289,655,842,375.45/x
  3. Step 3: Cross multiply
    410,431,470,911.47x = 615,749,749,181.35 × 289,655,842,375.45
  4. Step 4: Simplify right side
    410,431,470,911.47x = 178,355,512,291,596,001,345,536
  5. Step 5: Solve for x
    x = 178,355,512,291,596,001,345,536/410,431,470,911.47
  6. Step 6: Final answer
    x = 434,556,131,613.18

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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.