Finding the Fourth Proportional to 38,436,041.96, 53,041,737.36 and 21,032,386.68
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Solution
The fourth proportional to 38,436,041.96, 53,041,737.36 and 21,032,386.68 is: 29,024,693.32
Step by Step Solution
- Step 1: Write the proportion equation
38,436,041.96 : 53,041,737.36 = 21,032,386.68 : x - Step 2: Convert to fraction form
38,436,041.96/53,041,737.36 = 21,032,386.68/x - Step 3: Cross multiply
38,436,041.96x = 53,041,737.36 × 21,032,386.68 - Step 4: Simplify right side
38,436,041.96x = 1,115,594,330,334,522.38 - Step 5: Solve for x
x = 1,115,594,330,334,522.38/38,436,041.96 - Step 6: Final answer
x = 29,024,693.32
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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.