Finding the Fourth Proportional to 615,748,971.92, 849,411,423.24 and 380,724,504.08
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Solution
The fourth proportional to 615,748,971.92, 849,411,423.24 and 380,724,504.08 is: 525,200,621.72
Step by Step Solution
- Step 1: Write the proportion equation
615,748,971.92 : 849,411,423.24 = 380,724,504.08 : x - Step 2: Convert to fraction form
615,748,971.92/849,411,423.24 = 380,724,504.08/x - Step 3: Cross multiply
615,748,971.92x = 849,411,423.24 × 380,724,504.08 - Step 4: Simplify right side
615,748,971.92x = 323,391,742,872,936,000 - Step 5: Solve for x
x = 323,391,742,872,936,000/615,748,971.92 - Step 6: Final answer
x = 525,200,621.72
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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.