Finding the Fourth Proportional to 683,513,921.16, 943,253,740.44 and 370,248,135.12
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Solution
The fourth proportional to 683,513,921.16, 943,253,740.44 and 370,248,135.12 is: 510,944,879.88
Step by Step Solution
- Step 1: Write the proportion equation
683,513,921.16 : 943,253,740.44 = 370,248,135.12 : x - Step 2: Convert to fraction form
683,513,921.16/943,253,740.44 = 370,248,135.12/x - Step 3: Cross multiply
683,513,921.16x = 943,253,740.44 × 370,248,135.12 - Step 4: Simplify right side
683,513,921.16x = 349,237,938,342,874,560 - Step 5: Solve for x
x = 349,237,938,342,874,560/683,513,921.16 - Step 6: Final answer
x = 510,944,879.88
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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.