Home / 111,267,509.76-153,558,355.73-61,723,856.93

Finding the Fourth Proportional to 111,267,509.76, 153,558,355.73 and 61,723,856.93

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Solution

The fourth proportional to 111,267,509.76, 153,558,355.73 and 61,723,856.93 is: 85,184,021.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,267,509.76 : 153,558,355.73 = 61,723,856.93 : x
  2. Step 2: Convert to fraction form
    111,267,509.76/153,558,355.73 = 61,723,856.93/x
  3. Step 3: Cross multiply
    111,267,509.76x = 153,558,355.73 × 61,723,856.93
  4. Step 4: Simplify right side
    111,267,509.76x = 9,478,213,978,408,154
  5. Step 5: Solve for x
    x = 9,478,213,978,408,154/111,267,509.76
  6. Step 6: Final answer
    x = 85,184,021.81

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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.