Home / 28,615,436,418.37-42,929,556,428.99-8,719,880,947.96

Finding the Fourth Proportional to 28,615,436,418.37, 42,929,556,428.99 and 8,719,880,947.96

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Solution

The fourth proportional to 28,615,436,418.37, 42,929,556,428.99 and 8,719,880,947.96 is: 13,081,772,220.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615,436,418.37 : 42,929,556,428.99 = 8,719,880,947.96 : x
  2. Step 2: Convert to fraction form
    28,615,436,418.37/42,929,556,428.99 = 8,719,880,947.96/x
  3. Step 3: Cross multiply
    28,615,436,418.37x = 42,929,556,428.99 × 8,719,880,947.96
  4. Step 4: Simplify right side
    28,615,436,418.37x = 374,340,621,209,372,721,152
  5. Step 5: Solve for x
    x = 374,340,621,209,372,721,152/28,615,436,418.37
  6. Step 6: Final answer
    x = 13,081,772,220.29

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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.