Home / 145,514,492.20-218,271,738.30-99,597,989.80

Finding the Fourth Proportional to 145,514,492.20, 218,271,738.30 and 99,597,989.80

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Solution

The fourth proportional to 145,514,492.20, 218,271,738.30 and 99,597,989.80 is: 149,396,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,514,492.20 : 218,271,738.30 = 99,597,989.80 : x
  2. Step 2: Convert to fraction form
    145,514,492.20/218,271,738.30 = 99,597,989.80/x
  3. Step 3: Cross multiply
    145,514,492.20x = 218,271,738.30 × 99,597,989.80
  4. Step 4: Simplify right side
    145,514,492.20x = 21,739,426,364,831,668
  5. Step 5: Solve for x
    x = 21,739,426,364,831,668/145,514,492.20
  6. Step 6: Final answer
    x = 149,396,984.70

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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.