Finding the Fourth Proportional to 478,875,759.63, 660,867,769.80 and 267,201,079.35
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Solution
The fourth proportional to 478,875,759.63, 660,867,769.80 and 267,201,079.35 is: 368,748,214.64
Step by Step Solution
- Step 1: Write the proportion equation
478,875,759.63 : 660,867,769.80 = 267,201,079.35 : x - Step 2: Convert to fraction form
478,875,759.63/660,867,769.80 = 267,201,079.35/x - Step 3: Cross multiply
478,875,759.63x = 660,867,769.80 × 267,201,079.35 - Step 4: Simplify right side
478,875,759.63x = 176,584,581,398,187,328 - Step 5: Solve for x
x = 176,584,581,398,187,328/478,875,759.63 - Step 6: Final answer
x = 368,748,214.64
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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.