Home / 1,196,821,391,616.90-1,651,615,113,169.50-648,113,642,851.45

Finding the Fourth Proportional to 1,196,821,391,616.90, 1,651,615,113,169.50 and 648,113,642,851.45

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Solution

The fourth proportional to 1,196,821,391,616.90, 1,651,615,113,169.50 and 648,113,642,851.45 is: 894,397,689,649.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196,821,391,616.90 : 1,651,615,113,169.50 = 648,113,642,851.45 : x
  2. Step 2: Convert to fraction form
    1,196,821,391,616.90/1,651,615,113,169.50 = 648,113,642,851.45/x
  3. Step 3: Cross multiply
    1,196,821,391,616.90x = 1,651,615,113,169.50 × 648,113,642,851.45
  4. Step 4: Simplify right side
    1,196,821,391,616.90x = 1,070,434,287,584,794,378,240,000
  5. Step 5: Solve for x
    x = 1,070,434,287,584,794,378,240,000/1,196,821,391,616.90
  6. Step 6: Final answer
    x = 894,397,689,649.12

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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.