Finding the Fourth Proportional to 4,742,071.79, 6,543,362.54 and 2,648,656.28
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Solution
The fourth proportional to 4,742,071.79, 6,543,362.54 and 2,648,656.28 is: 3,654,756.62
Step by Step Solution
- Step 1: Write the proportion equation
4,742,071.79 : 6,543,362.54 = 2,648,656.28 : x - Step 2: Convert to fraction form
4,742,071.79/6,543,362.54 = 2,648,656.28/x - Step 3: Cross multiply
4,742,071.79x = 6,543,362.54 × 2,648,656.28 - Step 4: Simplify right side
4,742,071.79x = 17,331,118,237,927.66 - Step 5: Solve for x
x = 17,331,118,237,927.66/4,742,071.79 - Step 6: Final answer
x = 3,654,756.62
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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.