Home / 1,220,080,310.45-1,683,593,178.63-684,253,728.46

Finding the Fourth Proportional to 1,220,080,310.45, 1,683,593,178.63 and 684,253,728.46

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Solution

The fourth proportional to 1,220,080,310.45, 1,683,593,178.63 and 684,253,728.46 is: 944,204,164.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,080,310.45 : 1,683,593,178.63 = 684,253,728.46 : x
  2. Step 2: Convert to fraction form
    1,220,080,310.45/1,683,593,178.63 = 684,253,728.46/x
  3. Step 3: Cross multiply
    1,220,080,310.45x = 1,683,593,178.63 × 684,253,728.46
  4. Step 4: Simplify right side
    1,220,080,310.45x = 1,152,004,909,692,003,584
  5. Step 5: Solve for x
    x = 1,152,004,909,692,003,584/1,220,080,310.45
  6. Step 6: Final answer
    x = 944,204,164.12

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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.