Finding the Fourth Proportional to 1,224,881,235.24, 1,690,338,778.26 and 696,248,459.88
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Solution
The fourth proportional to 1,224,881,235.24, 1,690,338,778.26 and 696,248,459.88 is: 960,824,394.38
Step by Step Solution
- Step 1: Write the proportion equation
1,224,881,235.24 : 1,690,338,778.26 = 696,248,459.88 : x - Step 2: Convert to fraction form
1,224,881,235.24/1,690,338,778.26 = 696,248,459.88/x - Step 3: Cross multiply
1,224,881,235.24x = 1,690,338,778.26 × 696,248,459.88 - Step 4: Simplify right side
1,224,881,235.24x = 1,176,895,771,038,965,760 - Step 5: Solve for x
x = 1,176,895,771,038,965,760/1,224,881,235.24 - Step 6: Final answer
x = 960,824,394.38
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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.