Finding the Fourth Proportional to 1,702,612,798.48, 2,349,604,622.64 and 920,331,646.48
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Solution
The fourth proportional to 1,702,612,798.48, 2,349,604,622.64 and 920,331,646.48 is: 1,270,057,110.38
Step by Step Solution
- Step 1: Write the proportion equation
1,702,612,798.48 : 2,349,604,622.64 = 920,331,646.48 : x - Step 2: Convert to fraction form
1,702,612,798.48/2,349,604,622.64 = 920,331,646.48/x - Step 3: Cross multiply
1,702,612,798.48x = 2,349,604,622.64 × 920,331,646.48 - Step 4: Simplify right side
1,702,612,798.48x = 2,162,415,490,931,290,112 - Step 5: Solve for x
x = 2,162,415,490,931,290,112/1,702,612,798.48 - Step 6: Final answer
x = 1,270,057,110.38
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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.