Home / 147,191,186.76-203,125,181.10-81,114,055.86

Finding the Fourth Proportional to 147,191,186.76, 203,125,181.10 and 81,114,055.86

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Solution

The fourth proportional to 147,191,186.76, 203,125,181.10 and 81,114,055.86 is: 111,938,137.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,191,186.76 : 203,125,181.10 = 81,114,055.86 : x
  2. Step 2: Convert to fraction form
    147,191,186.76/203,125,181.10 = 81,114,055.86/x
  3. Step 3: Cross multiply
    147,191,186.76x = 203,125,181.10 × 81,114,055.86
  4. Step 4: Simplify right side
    147,191,186.76x = 16,476,307,286,774,748
  5. Step 5: Solve for x
    x = 16,476,307,286,774,748/147,191,186.76
  6. Step 6: Final answer
    x = 111,938,137.39

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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.