Finding the Fourth Proportional to 320,751,004.71, 442,572,363.63 and 195,219,119.55
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Solution
The fourth proportional to 320,751,004.71, 442,572,363.63 and 195,219,119.55 is: 269,363,418.65
Step by Step Solution
- Step 1: Write the proportion equation
320,751,004.71 : 442,572,363.63 = 195,219,119.55 : x - Step 2: Convert to fraction form
320,751,004.71/442,572,363.63 = 195,219,119.55/x - Step 3: Cross multiply
320,751,004.71x = 442,572,363.63 × 195,219,119.55 - Step 4: Simplify right side
320,751,004.71x = 86,398,587,165,011,040 - Step 5: Solve for x
x = 86,398,587,165,011,040/320,751,004.71 - Step 6: Final answer
x = 269,363,418.65
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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.