Finding the Fourth Proportional to 53,736,916.16, 74,157,681.12 and 29,290,577.60
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Solution
The fourth proportional to 53,736,916.16, 74,157,681.12 and 29,290,577.60 is: 40,421,398.71
Step by Step Solution
- Step 1: Write the proportion equation
53,736,916.16 : 74,157,681.12 = 29,290,577.60 : x - Step 2: Convert to fraction form
53,736,916.16/74,157,681.12 = 29,290,577.60/x - Step 3: Cross multiply
53,736,916.16x = 74,157,681.12 × 29,290,577.60 - Step 4: Simplify right side
53,736,916.16x = 2,172,121,313,481,415.25 - Step 5: Solve for x
x = 2,172,121,313,481,415.25/53,736,916.16 - Step 6: Final answer
x = 40,421,398.71
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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.