Home / 385,929,219,219.63-578,872,879,355.49-117,297,255,083.28

Finding the Fourth Proportional to 385,929,219,219.63, 578,872,879,355.49 and 117,297,255,083.28

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Solution

The fourth proportional to 385,929,219,219.63, 578,872,879,355.49 and 117,297,255,083.28 is: 175,939,515,354.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,929,219,219.63 : 578,872,879,355.49 = 117,297,255,083.28 : x
  2. Step 2: Convert to fraction form
    385,929,219,219.63/578,872,879,355.49 = 117,297,255,083.28/x
  3. Step 3: Cross multiply
    385,929,219,219.63x = 578,872,879,355.49 × 117,297,255,083.28
  4. Step 4: Simplify right side
    385,929,219,219.63x = 67,900,199,790,553,679,790,080
  5. Step 5: Solve for x
    x = 67,900,199,790,553,679,790,080/385,929,219,219.63
  6. Step 6: Final answer
    x = 175,939,515,354.27

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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.