Home / 30,149,063.40-45,223,595.10-28,763,380.20

Finding the Fourth Proportional to 30,149,063.40, 45,223,595.10 and 28,763,380.20

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Solution

The fourth proportional to 30,149,063.40, 45,223,595.10 and 28,763,380.20 is: 43,145,070.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,149,063.40 : 45,223,595.10 = 28,763,380.20 : x
  2. Step 2: Convert to fraction form
    30,149,063.40/45,223,595.10 = 28,763,380.20/x
  3. Step 3: Cross multiply
    30,149,063.40x = 45,223,595.10 × 28,763,380.20
  4. Step 4: Simplify right side
    30,149,063.40x = 1,300,783,459,872,157
  5. Step 5: Solve for x
    x = 1,300,783,459,872,157/30,149,063.40
  6. Step 6: Final answer
    x = 43,145,070.30

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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.