Finding the Fourth Proportional to 615,748,969.92, 849,411,420.48 and 380,724,502.08
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Solution
The fourth proportional to 615,748,969.92, 849,411,420.48 and 380,724,502.08 is: 525,200,618.96
Step by Step Solution
- Step 1: Write the proportion equation
615,748,969.92 : 849,411,420.48 = 380,724,502.08 : x - Step 2: Convert to fraction form
615,748,969.92/849,411,420.48 = 380,724,502.08/x - Step 3: Cross multiply
615,748,969.92x = 849,411,420.48 × 380,724,502.08 - Step 4: Simplify right side
615,748,969.92x = 323,391,740,123,313,536 - Step 5: Solve for x
x = 323,391,740,123,313,536/615,748,969.92 - Step 6: Final answer
x = 525,200,618.96
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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.