Home / 718,368,760,618.30-991,355,071,829.75-409,735,752,754.75

Finding the Fourth Proportional to 718,368,760,618.30, 991,355,071,829.75 and 409,735,752,754.75

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Solution

The fourth proportional to 718,368,760,618.30, 991,355,071,829.75 and 409,735,752,754.75 is: 565,438,864,927.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,368,760,618.30 : 991,355,071,829.75 = 409,735,752,754.75 : x
  2. Step 2: Convert to fraction form
    718,368,760,618.30/991,355,071,829.75 = 409,735,752,754.75/x
  3. Step 3: Cross multiply
    718,368,760,618.30x = 991,355,071,829.75 × 409,735,752,754.75
  4. Step 4: Simplify right side
    718,368,760,618.30x = 406,193,616,603,401,871,687,680
  5. Step 5: Solve for x
    x = 406,193,616,603,401,871,687,680/718,368,760,618.30
  6. Step 6: Final answer
    x = 565,438,864,927.52

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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.