Finding the Fourth Proportional to 5,312,468.40, 7,927,268.54 and 4,739,913.60
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Solution
The fourth proportional to 5,312,468.40, 7,927,268.54 and 4,739,913.60 is: 7,072,901.92
Step by Step Solution
- Step 1: Write the proportion equation
5,312,468.40 : 7,927,268.54 = 4,739,913.60 : x - Step 2: Convert to fraction form
5,312,468.40/7,927,268.54 = 4,739,913.60/x - Step 3: Cross multiply
5,312,468.40x = 7,927,268.54 × 4,739,913.60 - Step 4: Simplify right side
5,312,468.40x = 37,574,567,963,598.14 - Step 5: Solve for x
x = 37,574,567,963,598.14/5,312,468.40 - Step 6: Final answer
x = 7,072,901.92
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.