Home / 431,954,831,302.08-647,696,046,216.96-342,989,312,078.40

Finding the Fourth Proportional to 431,954,831,302.08, 647,696,046,216.96 and 342,989,312,078.40

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Solution

The fourth proportional to 431,954,831,302.08, 647,696,046,216.96 and 342,989,312,078.40 is: 514,296,415,340.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,954,831,302.08 : 647,696,046,216.96 = 342,989,312,078.40 : x
  2. Step 2: Convert to fraction form
    431,954,831,302.08/647,696,046,216.96 = 342,989,312,078.40/x
  3. Step 3: Cross multiply
    431,954,831,302.08x = 647,696,046,216.96 × 342,989,312,078.40
  4. Step 4: Simplify right side
    431,954,831,302.08x = 222,152,821,327,854,672,281,600
  5. Step 5: Solve for x
    x = 222,152,821,327,854,672,281,600/431,954,831,302.08
  6. Step 6: Final answer
    x = 514,296,415,340.93

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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.