Finding the Fourth Proportional to 875,513,590.40, 1,208,199,796.80 and 484,375,813.76
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Solution
The fourth proportional to 875,513,590.40, 1,208,199,796.80 and 484,375,813.76 is: 668,433,667.02
Step by Step Solution
- Step 1: Write the proportion equation
875,513,590.40 : 1,208,199,796.80 = 484,375,813.76 : x - Step 2: Convert to fraction form
875,513,590.40/1,208,199,796.80 = 484,375,813.76/x - Step 3: Cross multiply
875,513,590.40x = 1,208,199,796.80 × 484,375,813.76 - Step 4: Simplify right side
875,513,590.40x = 585,222,759,759,666,560 - Step 5: Solve for x
x = 585,222,759,759,666,560/875,513,590.40 - Step 6: Final answer
x = 668,433,667.02
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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.