Home / 691,117,391.76-1,036,937,176.64-414,961,161.88

Finding the Fourth Proportional to 691,117,391.76, 1,036,937,176.64 and 414,961,161.88

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Solution

The fourth proportional to 691,117,391.76, 1,036,937,176.64 and 414,961,161.88 is: 622,598,506.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,117,391.76 : 1,036,937,176.64 = 414,961,161.88 : x
  2. Step 2: Convert to fraction form
    691,117,391.76/1,036,937,176.64 = 414,961,161.88/x
  3. Step 3: Cross multiply
    691,117,391.76x = 1,036,937,176.64 × 414,961,161.88
  4. Step 4: Simplify right side
    691,117,391.76x = 430,288,655,615,101,184
  5. Step 5: Solve for x
    x = 430,288,655,615,101,184/691,117,391.76
  6. Step 6: Final answer
    x = 622,598,506.05

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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.