Home / 1,005,640,853.90-1,508,525,042.84-315,575,344.22

Finding the Fourth Proportional to 1,005,640,853.90, 1,508,525,042.84 and 315,575,344.22

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Solution

The fourth proportional to 1,005,640,853.90, 1,508,525,042.84 and 315,575,344.22 is: 473,383,025.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,640,853.90 : 1,508,525,042.84 = 315,575,344.22 : x
  2. Step 2: Convert to fraction form
    1,005,640,853.90/1,508,525,042.84 = 315,575,344.22/x
  3. Step 3: Cross multiply
    1,005,640,853.90x = 1,508,525,042.84 × 315,575,344.22
  4. Step 4: Simplify right side
    1,005,640,853.90x = 476,053,309,657,145,408
  5. Step 5: Solve for x
    x = 476,053,309,657,145,408/1,005,640,853.90
  6. Step 6: Final answer
    x = 473,383,025.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.