Home / 124,416,145.60-186,624,218.40-78,499,643.20

Finding the Fourth Proportional to 124,416,145.60, 186,624,218.40 and 78,499,643.20

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Solution

The fourth proportional to 124,416,145.60, 186,624,218.40 and 78,499,643.20 is: 117,749,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,416,145.60 : 186,624,218.40 = 78,499,643.20 : x
  2. Step 2: Convert to fraction form
    124,416,145.60/186,624,218.40 = 78,499,643.20/x
  3. Step 3: Cross multiply
    124,416,145.60x = 186,624,218.40 × 78,499,643.20
  4. Step 4: Simplify right side
    124,416,145.60x = 14,649,934,556,878,876
  5. Step 5: Solve for x
    x = 14,649,934,556,878,876/124,416,145.60
  6. Step 6: Final answer
    x = 117,749,464.80

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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.