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Finding the Fourth Proportional to 636,640,007.60, 954,960,011.40 and 636,640,007.60

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Solution

The fourth proportional to 636,640,007.60, 954,960,011.40 and 636,640,007.60 is: 954,960,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,640,007.60 : 954,960,011.40 = 636,640,007.60 : x
  2. Step 2: Convert to fraction form
    636,640,007.60/954,960,011.40 = 636,640,007.60/x
  3. Step 3: Cross multiply
    636,640,007.60x = 954,960,011.40 × 636,640,007.60
  4. Step 4: Simplify right side
    636,640,007.60x = 607,965,748,915,392,128
  5. Step 5: Solve for x
    x = 607,965,748,915,392,128/636,640,007.60
  6. Step 6: Final answer
    x = 954,960,011.40

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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.