Home / 686,376,328,675.50-947,199,488,181.52-377,727,687,700.35

Finding the Fourth Proportional to 686,376,328,675.50, 947,199,488,181.52 and 377,727,687,700.35

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Solution

The fourth proportional to 686,376,328,675.50, 947,199,488,181.52 and 377,727,687,700.35 is: 521,264,294,111.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,376,328,675.50 : 947,199,488,181.52 = 377,727,687,700.35 : x
  2. Step 2: Convert to fraction form
    686,376,328,675.50/947,199,488,181.52 = 377,727,687,700.35/x
  3. Step 3: Cross multiply
    686,376,328,675.50x = 947,199,488,181.52 × 377,727,687,700.35
  4. Step 4: Simplify right side
    686,376,328,675.50x = 357,783,472,461,760,558,006,272
  5. Step 5: Solve for x
    x = 357,783,472,461,760,558,006,272/686,376,328,675.50
  6. Step 6: Final answer
    x = 521,264,294,111.33

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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.