Home / 786,554,619,369.90-1,085,433,823,028.10-439,329,965,551.10

Finding the Fourth Proportional to 786,554,619,369.90, 1,085,433,823,028.10 and 439,329,965,551.10

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Solution

The fourth proportional to 786,554,619,369.90, 1,085,433,823,028.10 and 439,329,965,551.10 is: 606,268,900,258.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,554,619,369.90 : 1,085,433,823,028.10 = 439,329,965,551.10 : x
  2. Step 2: Convert to fraction form
    786,554,619,369.90/1,085,433,823,028.10 = 439,329,965,551.10/x
  3. Step 3: Cross multiply
    786,554,619,369.90x = 1,085,433,823,028.10 × 439,329,965,551.10
  4. Step 4: Simplify right side
    786,554,619,369.90x = 476,863,604,078,933,916,516,352
  5. Step 5: Solve for x
    x = 476,863,604,078,933,916,516,352/786,554,619,369.90
  6. Step 6: Final answer
    x = 606,268,900,258.88

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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.