Home / 28,891,219,467,112-39,869,889,372,486-15,899,460,788,985

Finding the Fourth Proportional to 28,891,219,467,112, 39,869,889,372,486 and 15,899,460,788,985

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Solution

The fourth proportional to 28,891,219,467,112, 39,869,889,372,486 and 15,899,460,788,985 is: 21,941,259,470,221.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,891,219,467,112 : 39,869,889,372,486 = 15,899,460,788,985 : x
  2. Step 2: Convert to fraction form
    28,891,219,467,112/39,869,889,372,486 = 15,899,460,788,985/x
  3. Step 3: Cross multiply
    28,891,219,467,112x = 39,869,889,372,486 × 15,899,460,788,985
  4. Step 4: Simplify right side
    28,891,219,467,112x = 633,909,742,739,010,894,520,385,536
  5. Step 5: Solve for x
    x = 633,909,742,739,010,894,520,385,536/28,891,219,467,112
  6. Step 6: Final answer
    x = 21,941,259,470,221.22

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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.