Home / 120,369,066.78-166,106,501.06-70,812,631.32

Finding the Fourth Proportional to 120,369,066.78, 166,106,501.06 and 70,812,631.32

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Solution

The fourth proportional to 120,369,066.78, 166,106,501.06 and 70,812,631.32 is: 97,719,777.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,369,066.78 : 166,106,501.06 = 70,812,631.32 : x
  2. Step 2: Convert to fraction form
    120,369,066.78/166,106,501.06 = 70,812,631.32/x
  3. Step 3: Cross multiply
    120,369,066.78x = 166,106,501.06 × 70,812,631.32
  4. Step 4: Simplify right side
    120,369,066.78x = 11,762,438,419,416,968
  5. Step 5: Solve for x
    x = 11,762,438,419,416,968/120,369,066.78
  6. Step 6: Final answer
    x = 97,719,777.47

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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.