Home / 943,533,661.22-1,302,080,385.36-520,138,021.07

Finding the Fourth Proportional to 943,533,661.22, 1,302,080,385.36 and 520,138,021.07

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Solution

The fourth proportional to 943,533,661.22, 1,302,080,385.36 and 520,138,021.07 is: 717,792,637.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,533,661.22 : 1,302,080,385.36 = 520,138,021.07 : x
  2. Step 2: Convert to fraction form
    943,533,661.22/1,302,080,385.36 = 520,138,021.07/x
  3. Step 3: Cross multiply
    943,533,661.22x = 1,302,080,385.36 × 520,138,021.07
  4. Step 4: Simplify right side
    943,533,661.22x = 677,261,514,915,213,312
  5. Step 5: Solve for x
    x = 677,261,514,915,213,312/943,533,661.22
  6. Step 6: Final answer
    x = 717,792,637.14

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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.