Home / 1,217,764,505.94-1,680,515,017.70-660,847,553

Finding the Fourth Proportional to 1,217,764,505.94, 1,680,515,017.70 and 660,847,553

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Solution

The fourth proportional to 1,217,764,505.94, 1,680,515,017.70 and 660,847,553 is: 911,969,622.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,764,505.94 : 1,680,515,017.70 = 660,847,553 : x
  2. Step 2: Convert to fraction form
    1,217,764,505.94/1,680,515,017.70 = 660,847,553/x
  3. Step 3: Cross multiply
    1,217,764,505.94x = 1,680,515,017.70 × 660,847,553
  4. Step 4: Simplify right side
    1,217,764,505.94x = 1,110,564,237,226,796,672
  5. Step 5: Solve for x
    x = 1,110,564,237,226,796,672/1,217,764,505.94
  6. Step 6: Final answer
    x = 911,969,622.87

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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.