Home / 209,946,728.22-315,328,758.75-171,113,875.08

Finding the Fourth Proportional to 209,946,728.22, 315,328,758.75 and 171,113,875.08

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Solution

The fourth proportional to 209,946,728.22, 315,328,758.75 and 171,113,875.08 is: 257,003,889.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,946,728.22 : 315,328,758.75 = 171,113,875.08 : x
  2. Step 2: Convert to fraction form
    209,946,728.22/315,328,758.75 = 171,113,875.08/x
  3. Step 3: Cross multiply
    209,946,728.22x = 315,328,758.75 × 171,113,875.08
  4. Step 4: Simplify right side
    209,946,728.22x = 53,957,125,833,878,960
  5. Step 5: Solve for x
    x = 53,957,125,833,878,960/209,946,728.22
  6. Step 6: Final answer
    x = 257,003,889.95

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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.