Home / 28,615,436,419.59-42,929,556,430.81-8,719,880,949.18

Finding the Fourth Proportional to 28,615,436,419.59, 42,929,556,430.81 and 8,719,880,949.18

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Solution

The fourth proportional to 28,615,436,419.59, 42,929,556,430.81 and 8,719,880,949.18 is: 13,081,772,222.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615,436,419.59 : 42,929,556,430.81 = 8,719,880,949.18 : x
  2. Step 2: Convert to fraction form
    28,615,436,419.59/42,929,556,430.81 = 8,719,880,949.18/x
  3. Step 3: Cross multiply
    28,615,436,419.59x = 42,929,556,430.81 × 8,719,880,949.18
  4. Step 4: Simplify right side
    28,615,436,419.59x = 374,340,621,277,535,731,712
  5. Step 5: Solve for x
    x = 374,340,621,277,535,731,712/28,615,436,419.59
  6. Step 6: Final answer
    x = 13,081,772,222.12

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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.