Home / 90,711,792,819.20-136,067,689,228.80-83,528,411,110.40

Finding the Fourth Proportional to 90,711,792,819.20, 136,067,689,228.80 and 83,528,411,110.40

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Solution

The fourth proportional to 90,711,792,819.20, 136,067,689,228.80 and 83,528,411,110.40 is: 125,292,616,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,711,792,819.20 : 136,067,689,228.80 = 83,528,411,110.40 : x
  2. Step 2: Convert to fraction form
    90,711,792,819.20/136,067,689,228.80 = 83,528,411,110.40/x
  3. Step 3: Cross multiply
    90,711,792,819.20x = 136,067,689,228.80 × 83,528,411,110.40
  4. Step 4: Simplify right side
    90,711,792,819.20x = 11,365,517,884,745,351,954,432
  5. Step 5: Solve for x
    x = 11,365,517,884,745,351,954,432/90,711,792,819.20
  6. Step 6: Final answer
    x = 125,292,616,665.60

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Double scale
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Similar ratio
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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.