Finding the Fourth Proportional to 5,038,862,813.20, 7,558,294,219.80 and 2,278,581,878.80
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Solution
The fourth proportional to 5,038,862,813.20, 7,558,294,219.80 and 2,278,581,878.80 is: 3,417,872,818.20
Step by Step Solution
- Step 1: Write the proportion equation
5,038,862,813.20 : 7,558,294,219.80 = 2,278,581,878.80 : x - Step 2: Convert to fraction form
5,038,862,813.20/7,558,294,219.80 = 2,278,581,878.80/x - Step 3: Cross multiply
5,038,862,813.20x = 7,558,294,219.80 × 2,278,581,878.80 - Step 4: Simplify right side
5,038,862,813.20x = 17,222,192,243,875,065,856 - Step 5: Solve for x
x = 17,222,192,243,875,065,856/5,038,862,813.20 - Step 6: Final answer
x = 3,417,872,818.20
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1.5x scale
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.