Home / 1,217,764,495.61-1,680,515,003.46-660,847,542.67

Finding the Fourth Proportional to 1,217,764,495.61, 1,680,515,003.46 and 660,847,542.67

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Solution

The fourth proportional to 1,217,764,495.61, 1,680,515,003.46 and 660,847,542.67 is: 911,969,608.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,764,495.61 : 1,680,515,003.46 = 660,847,542.67 : x
  2. Step 2: Convert to fraction form
    1,217,764,495.61/1,680,515,003.46 = 660,847,542.67/x
  3. Step 3: Cross multiply
    1,217,764,495.61x = 1,680,515,003.46 × 660,847,542.67
  4. Step 4: Simplify right side
    1,217,764,495.61x = 1,110,564,210,456,607,488
  5. Step 5: Solve for x
    x = 1,110,564,210,456,607,488/1,217,764,495.61
  6. Step 6: Final answer
    x = 911,969,608.62

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1.5x scale

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.