Home / 28,615,436,417.20-42,929,556,427.23-8,719,880,946.79

Finding the Fourth Proportional to 28,615,436,417.20, 42,929,556,427.23 and 8,719,880,946.79

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Solution

The fourth proportional to 28,615,436,417.20, 42,929,556,427.23 and 8,719,880,946.79 is: 13,081,772,218.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615,436,417.20 : 42,929,556,427.23 = 8,719,880,946.79 : x
  2. Step 2: Convert to fraction form
    28,615,436,417.20/42,929,556,427.23 = 8,719,880,946.79/x
  3. Step 3: Cross multiply
    28,615,436,417.20x = 42,929,556,427.23 × 8,719,880,946.79
  4. Step 4: Simplify right side
    28,615,436,417.20x = 374,340,621,143,785,537,536
  5. Step 5: Solve for x
    x = 374,340,621,143,785,537,536/28,615,436,417.20
  6. Step 6: Final answer
    x = 13,081,772,218.54

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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.