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Finding the Fourth Proportional to 638,616,067.60, 957,924,101.40 and 500,866,560.40

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Solution

The fourth proportional to 638,616,067.60, 957,924,101.40 and 500,866,560.40 is: 751,299,840.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,616,067.60 : 957,924,101.40 = 500,866,560.40 : x
  2. Step 2: Convert to fraction form
    638,616,067.60/957,924,101.40 = 500,866,560.40/x
  3. Step 3: Cross multiply
    638,616,067.60x = 957,924,101.40 × 500,866,560.40
  4. Step 4: Simplify right side
    638,616,067.60x = 479,792,149,792,478,784
  5. Step 5: Solve for x
    x = 479,792,149,792,478,784/638,616,067.60
  6. Step 6: Final answer
    x = 751,299,840.60

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1.5x scale

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.