Home / 916,708,568.91-1,375,108,459.79-261,756,773.07

Finding the Fourth Proportional to 916,708,568.91, 1,375,108,459.79 and 261,756,773.07

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Solution

The fourth proportional to 916,708,568.91, 1,375,108,459.79 and 261,756,773.07 is: 392,648,182.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,708,568.91 : 1,375,108,459.79 = 261,756,773.07 : x
  2. Step 2: Convert to fraction form
    916,708,568.91/1,375,108,459.79 = 261,756,773.07/x
  3. Step 3: Cross multiply
    916,708,568.91x = 1,375,108,459.79 × 261,756,773.07
  4. Step 4: Simplify right side
    916,708,568.91x = 359,943,953,054,579,456
  5. Step 5: Solve for x
    x = 359,943,953,054,579,456/916,708,568.91
  6. Step 6: Final answer
    x = 392,648,182.05

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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.