Finding the Fourth Proportional to 694,911,681.60, 958,763,083.68 and 401,449,174.08
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Solution
The fourth proportional to 694,911,681.60, 958,763,083.68 and 401,449,174.08 is: 553,875,633.80
Step by Step Solution
- Step 1: Write the proportion equation
694,911,681.60 : 958,763,083.68 = 401,449,174.08 : x - Step 2: Convert to fraction form
694,911,681.60/958,763,083.68 = 401,449,174.08/x - Step 3: Cross multiply
694,911,681.60x = 958,763,083.68 × 401,449,174.08 - Step 4: Simplify right side
694,911,681.60x = 384,894,648,081,729,920 - Step 5: Solve for x
x = 384,894,648,081,729,920/694,911,681.60 - Step 6: Final answer
x = 553,875,633.80
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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.