Finding the Fourth Proportional to 497,931,012.18, 686,506,067.28 and 408,292,694.28
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Solution
The fourth proportional to 497,931,012.18, 686,506,067.28 and 408,292,694.28 is: 562,920,173.66
Step by Step Solution
- Step 1: Write the proportion equation
497,931,012.18 : 686,506,067.28 = 408,292,694.28 : x - Step 2: Convert to fraction form
497,931,012.18/686,506,067.28 = 408,292,694.28/x - Step 3: Cross multiply
497,931,012.18x = 686,506,067.28 × 408,292,694.28 - Step 4: Simplify right side
497,931,012.18x = 280,295,411,849,318,112 - Step 5: Solve for x
x = 280,295,411,849,318,112/497,931,012.18 - Step 6: Final answer
x = 562,920,173.66
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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.