Home / 28,615,436,420.19-42,929,556,431.73-8,719,880,949.78

Finding the Fourth Proportional to 28,615,436,420.19, 42,929,556,431.73 and 8,719,880,949.78

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Solution

The fourth proportional to 28,615,436,420.19, 42,929,556,431.73 and 8,719,880,949.78 is: 13,081,772,223.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615,436,420.19 : 42,929,556,431.73 = 8,719,880,949.78 : x
  2. Step 2: Convert to fraction form
    28,615,436,420.19/42,929,556,431.73 = 8,719,880,949.78/x
  3. Step 3: Cross multiply
    28,615,436,420.19x = 42,929,556,431.73 × 8,719,880,949.78
  4. Step 4: Simplify right side
    28,615,436,420.19x = 374,340,621,311,547,932,672
  5. Step 5: Solve for x
    x = 374,340,621,311,547,932,672/28,615,436,420.19
  6. Step 6: Final answer
    x = 13,081,772,223.03

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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.