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Finding the Fourth Proportional to 30,407,582.40, 45,611,373.60 and 28,392,043.20

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Solution

The fourth proportional to 30,407,582.40, 45,611,373.60 and 28,392,043.20 is: 42,588,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,407,582.40 : 45,611,373.60 = 28,392,043.20 : x
  2. Step 2: Convert to fraction form
    30,407,582.40/45,611,373.60 = 28,392,043.20/x
  3. Step 3: Cross multiply
    30,407,582.40x = 45,611,373.60 × 28,392,043.20
  4. Step 4: Simplify right side
    30,407,582.40x = 1,295,000,089,662,539.50
  5. Step 5: Solve for x
    x = 1,295,000,089,662,539.50/30,407,582.40
  6. Step 6: Final answer
    x = 42,588,064.80

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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.