Home / 138,094,088.72-207,168,420.76-50,656,417.60

Finding the Fourth Proportional to 138,094,088.72, 207,168,420.76 and 50,656,417.60

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Solution

The fourth proportional to 138,094,088.72, 207,168,420.76 and 50,656,417.60 is: 75,994,636.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,094,088.72 : 207,168,420.76 = 50,656,417.60 : x
  2. Step 2: Convert to fraction form
    138,094,088.72/207,168,420.76 = 50,656,417.60/x
  3. Step 3: Cross multiply
    138,094,088.72x = 207,168,420.76 × 50,656,417.60
  4. Step 4: Simplify right side
    138,094,088.72x = 10,494,410,035,551,070
  5. Step 5: Solve for x
    x = 10,494,410,035,551,070/138,094,088.72
  6. Step 6: Final answer
    x = 75,994,636.21

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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.