Home / 319,564,651,140.12-440,832,023,829.72-197,590,395,179.52

Finding the Fourth Proportional to 319,564,651,140.12, 440,832,023,829.72 and 197,590,395,179.52

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Solution

The fourth proportional to 319,564,651,140.12, 440,832,023,829.72 and 197,590,395,179.52 is: 272,571,366,969.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,564,651,140.12 : 440,832,023,829.72 = 197,590,395,179.52 : x
  2. Step 2: Convert to fraction form
    319,564,651,140.12/440,832,023,829.72 = 197,590,395,179.52/x
  3. Step 3: Cross multiply
    319,564,651,140.12x = 440,832,023,829.72 × 197,590,395,179.52
  4. Step 4: Simplify right side
    319,564,651,140.12x = 87,104,173,796,301,949,894,656
  5. Step 5: Solve for x
    x = 87,104,173,796,301,949,894,656/319,564,651,140.12
  6. Step 6: Final answer
    x = 272,571,366,969.21

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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.