Finding the Fourth Proportional to 6,420,358.68, 9,630,876.58 and 1,628,089.32
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Solution
The fourth proportional to 6,420,358.68, 9,630,876.58 and 1,628,089.32 is: 2,442,219.83
Step by Step Solution
- Step 1: Write the proportion equation
6,420,358.68 : 9,630,876.58 = 1,628,089.32 : x - Step 2: Convert to fraction form
6,420,358.68/9,630,876.58 = 1,628,089.32/x - Step 3: Cross multiply
6,420,358.68x = 9,630,876.58 × 1,628,089.32 - Step 4: Simplify right side
6,420,358.68x = 15,679,927,302,136.13 - Step 5: Solve for x
x = 15,679,927,302,136.13/6,420,358.68 - Step 6: Final answer
x = 2,442,219.83
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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.