Home / 722,142,070.32-996,584,631.12-404,605,055.28

Finding the Fourth Proportional to 722,142,070.32, 996,584,631.12 and 404,605,055.28

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Solution

The fourth proportional to 722,142,070.32, 996,584,631.12 and 404,605,055.28 is: 558,370,985.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,142,070.32 : 996,584,631.12 = 404,605,055.28 : x
  2. Step 2: Convert to fraction form
    722,142,070.32/996,584,631.12 = 404,605,055.28/x
  3. Step 3: Cross multiply
    722,142,070.32x = 996,584,631.12 × 404,605,055.28
  4. Step 4: Simplify right side
    722,142,070.32x = 403,223,179,765,505,984
  5. Step 5: Solve for x
    x = 403,223,179,765,505,984/722,142,070.32
  6. Step 6: Final answer
    x = 558,370,985.90

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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.