Finding the Fourth Proportional to 472,437,542.80, 708,656,314.20 and 424,820,429.20
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Solution
The fourth proportional to 472,437,542.80, 708,656,314.20 and 424,820,429.20 is: 637,230,643.80
Step by Step Solution
- Step 1: Write the proportion equation
472,437,542.80 : 708,656,314.20 = 424,820,429.20 : x - Step 2: Convert to fraction form
472,437,542.80/708,656,314.20 = 424,820,429.20/x - Step 3: Cross multiply
472,437,542.80x = 708,656,314.20 × 424,820,429.20 - Step 4: Simplify right side
472,437,542.80x = 301,051,679,553,734,080 - Step 5: Solve for x
x = 301,051,679,553,734,080/472,437,542.80 - Step 6: Final answer
x = 637,230,643.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.