Finding the Fourth Proportional to 853,884,998.08, 1,178,362,305.36 and 462,744,422.08
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Solution
The fourth proportional to 853,884,998.08, 1,178,362,305.36 and 462,744,422.08 is: 638,587,848.74
Step by Step Solution
- Step 1: Write the proportion equation
853,884,998.08 : 1,178,362,305.36 = 462,744,422.08 : x - Step 2: Convert to fraction form
853,884,998.08/1,178,362,305.36 = 462,744,422.08/x - Step 3: Cross multiply
853,884,998.08x = 1,178,362,305.36 × 462,744,422.08 - Step 4: Simplify right side
853,884,998.08x = 545,280,583,994,669,632 - Step 5: Solve for x
x = 545,280,583,994,669,632/853,884,998.08 - Step 6: Final answer
x = 638,587,848.74
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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.