Finding the Fourth Proportional to 5,100,400.18, 7,038,603.57 and 2,808,569.98
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Solution
The fourth proportional to 5,100,400.18, 7,038,603.57 and 2,808,569.98 is: 3,875,854.83
Step by Step Solution
- Step 1: Write the proportion equation
5,100,400.18 : 7,038,603.57 = 2,808,569.98 : x - Step 2: Convert to fraction form
5,100,400.18/7,038,603.57 = 2,808,569.98/x - Step 3: Cross multiply
5,100,400.18x = 7,038,603.57 × 2,808,569.98 - Step 4: Simplify right side
5,100,400.18x = 19,768,410,687,822.83 - Step 5: Solve for x
x = 19,768,410,687,822.83/5,100,400.18 - Step 6: Final answer
x = 3,875,854.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.