Home / 718,368,760,637.66-991,355,071,856.40-409,735,752,774.06

Finding the Fourth Proportional to 718,368,760,637.66, 991,355,071,856.40 and 409,735,752,774.06

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Solution

The fourth proportional to 718,368,760,637.66, 991,355,071,856.40 and 409,735,752,774.06 is: 565,438,864,954.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,368,760,637.66 : 991,355,071,856.40 = 409,735,752,774.06 : x
  2. Step 2: Convert to fraction form
    718,368,760,637.66/991,355,071,856.40 = 409,735,752,774.06/x
  3. Step 3: Cross multiply
    718,368,760,637.66x = 991,355,071,856.40 × 409,735,752,774.06
  4. Step 4: Simplify right side
    718,368,760,637.66x = 406,193,616,633,464,428,167,168
  5. Step 5: Solve for x
    x = 406,193,616,633,464,428,167,168/718,368,760,637.66
  6. Step 6: Final answer
    x = 565,438,864,954.13

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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.