Home / 7,685,703,891.90-11,530,128,220.60-2,642,905,425.78

Finding the Fourth Proportional to 7,685,703,891.90, 11,530,128,220.60 and 2,642,905,425.78

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Solution

The fourth proportional to 7,685,703,891.90, 11,530,128,220.60 and 2,642,905,425.78 is: 3,964,898,838.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,685,703,891.90 : 11,530,128,220.60 = 2,642,905,425.78 : x
  2. Step 2: Convert to fraction form
    7,685,703,891.90/11,530,128,220.60 = 2,642,905,425.78/x
  3. Step 3: Cross multiply
    7,685,703,891.90x = 11,530,128,220.60 × 2,642,905,425.78
  4. Step 4: Simplify right side
    7,685,703,891.90x = 30,473,038,434,162,839,552
  5. Step 5: Solve for x
    x = 30,473,038,434,162,839,552/7,685,703,891.90
  6. Step 6: Final answer
    x = 3,964,898,838.51

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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.