Home / 380,890,100,393.71-525,628,424,340.46-209,612,031,883.22

Finding the Fourth Proportional to 380,890,100,393.71, 525,628,424,340.46 and 209,612,031,883.22

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Solution

The fourth proportional to 380,890,100,393.71, 525,628,424,340.46 and 209,612,031,883.22 is: 289,264,651,214.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,890,100,393.71 : 525,628,424,340.46 = 209,612,031,883.22 : x
  2. Step 2: Convert to fraction form
    380,890,100,393.71/525,628,424,340.46 = 209,612,031,883.22/x
  3. Step 3: Cross multiply
    380,890,100,393.71x = 525,628,424,340.46 × 209,612,031,883.22
  4. Step 4: Simplify right side
    380,890,100,393.71x = 110,178,042,041,579,195,072,512
  5. Step 5: Solve for x
    x = 110,178,042,041,579,195,072,512/380,890,100,393.71
  6. Step 6: Final answer
    x = 289,264,651,214.86

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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.