Finding the Fourth Proportional to 557,460,803.14, 769,316,135.13 and 319,352,006.66
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Solution
The fourth proportional to 557,460,803.14, 769,316,135.13 and 319,352,006.66 is: 440,717,356.50
Step by Step Solution
- Step 1: Write the proportion equation
557,460,803.14 : 769,316,135.13 = 319,352,006.66 : x - Step 2: Convert to fraction form
557,460,803.14/769,316,135.13 = 319,352,006.66/x - Step 3: Cross multiply
557,460,803.14x = 769,316,135.13 × 319,352,006.66 - Step 4: Simplify right side
557,460,803.14x = 245,682,651,509,681,248 - Step 5: Solve for x
x = 245,682,651,509,681,248/557,460,803.14 - Step 6: Final answer
x = 440,717,356.50
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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.