Home / 145,315,447.20-218,276,434.80-122,640,631.20

Finding the Fourth Proportional to 145,315,447.20, 218,276,434.80 and 122,640,631.20

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Solution

The fourth proportional to 145,315,447.20, 218,276,434.80 and 122,640,631.20 is: 184,216,889.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,315,447.20 : 218,276,434.80 = 122,640,631.20 : x
  2. Step 2: Convert to fraction form
    145,315,447.20/218,276,434.80 = 122,640,631.20/x
  3. Step 3: Cross multiply
    145,315,447.20x = 218,276,434.80 × 122,640,631.20
  4. Step 4: Simplify right side
    145,315,447.20x = 26,769,559,739,957,648
  5. Step 5: Solve for x
    x = 26,769,559,739,957,648/145,315,447.20
  6. Step 6: Final answer
    x = 184,216,889.92

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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.