Finding the Fourth Proportional to 2,219,614,455.20, 3,328,413,913.20 and 838,970,103.20
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Solution
The fourth proportional to 2,219,614,455.20, 3,328,413,913.20 and 838,970,103.20 is: 1,258,074,237.94
Step by Step Solution
- Step 1: Write the proportion equation
2,219,614,455.20 : 3,328,413,913.20 = 838,970,103.20 : x - Step 2: Convert to fraction form
2,219,614,455.20/3,328,413,913.20 = 838,970,103.20/x - Step 3: Cross multiply
2,219,614,455.20x = 3,328,413,913.20 × 838,970,103.20 - Step 4: Simplify right side
2,219,614,455.20x = 2,792,439,764,249,719,808 - Step 5: Solve for x
x = 2,792,439,764,249,719,808/2,219,614,455.20 - Step 6: Final answer
x = 1,258,074,237.94
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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.