Home / 686,376,328,677.10-947,199,488,183.76-377,727,687,701.97

Finding the Fourth Proportional to 686,376,328,677.10, 947,199,488,183.76 and 377,727,687,701.97

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Solution

The fourth proportional to 686,376,328,677.10, 947,199,488,183.76 and 377,727,687,701.97 is: 521,264,294,113.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,376,328,677.10 : 947,199,488,183.76 = 377,727,687,701.97 : x
  2. Step 2: Convert to fraction form
    686,376,328,677.10/947,199,488,183.76 = 377,727,687,701.97/x
  3. Step 3: Cross multiply
    686,376,328,677.10x = 947,199,488,183.76 × 377,727,687,701.97
  4. Step 4: Simplify right side
    686,376,328,677.10x = 357,783,472,464,141,110,738,944
  5. Step 5: Solve for x
    x = 357,783,472,464,141,110,738,944/686,376,328,677.10
  6. Step 6: Final answer
    x = 521,264,294,113.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.