Home / 28,891,219,466,913-39,869,889,372,213-15,899,460,788,786

Finding the Fourth Proportional to 28,891,219,466,913, 39,869,889,372,213 and 15,899,460,788,786

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Solution

The fourth proportional to 28,891,219,466,913, 39,869,889,372,213 and 15,899,460,788,786 is: 21,941,259,469,947.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,891,219,466,913 : 39,869,889,372,213 = 15,899,460,788,786 : x
  2. Step 2: Convert to fraction form
    28,891,219,466,913/39,869,889,372,213 = 15,899,460,788,786/x
  3. Step 3: Cross multiply
    28,891,219,466,913x = 39,869,889,372,213 × 15,899,460,788,786
  4. Step 4: Simplify right side
    28,891,219,466,913x = 633,909,742,726,736,221,585,801,216
  5. Step 5: Solve for x
    x = 633,909,742,726,736,221,585,801,216/28,891,219,466,913
  6. Step 6: Final answer
    x = 21,941,259,469,947.49

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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.