Home / 642,099,935.03-886,043,790.83-355,999,095.50

Finding the Fourth Proportional to 642,099,935.03, 886,043,790.83 and 355,999,095.50

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Solution

The fourth proportional to 642,099,935.03, 886,043,790.83 and 355,999,095.50 is: 491,248,746.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,099,935.03 : 886,043,790.83 = 355,999,095.50 : x
  2. Step 2: Convert to fraction form
    642,099,935.03/886,043,790.83 = 355,999,095.50/x
  3. Step 3: Cross multiply
    642,099,935.03x = 886,043,790.83 × 355,999,095.50
  4. Step 4: Simplify right side
    642,099,935.03x = 315,430,788,105,330,944
  5. Step 5: Solve for x
    x = 315,430,788,105,330,944/642,099,935.03
  6. Step 6: Final answer
    x = 491,248,746.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.