Home / 130,571,462.30-180,188,616.85-71,832,866.86

Finding the Fourth Proportional to 130,571,462.30, 180,188,616.85 and 71,832,866.86

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Solution

The fourth proportional to 130,571,462.30, 180,188,616.85 and 71,832,866.86 is: 99,129,355.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,571,462.30 : 180,188,616.85 = 71,832,866.86 : x
  2. Step 2: Convert to fraction form
    130,571,462.30/180,188,616.85 = 71,832,866.86/x
  3. Step 3: Cross multiply
    130,571,462.30x = 180,188,616.85 × 71,832,866.86
  4. Step 4: Simplify right side
    130,571,462.30x = 12,943,464,923,243,548
  5. Step 5: Solve for x
    x = 12,943,464,923,243,548/130,571,462.30
  6. Step 6: Final answer
    x = 99,129,355.64

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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.