Finding the Fourth Proportional to 472,824,089.80, 709,236,134.70 and 291,425,561.80
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Solution
The fourth proportional to 472,824,089.80, 709,236,134.70 and 291,425,561.80 is: 437,138,342.70
Step by Step Solution
- Step 1: Write the proportion equation
472,824,089.80 : 709,236,134.70 = 291,425,561.80 : x - Step 2: Convert to fraction form
472,824,089.80/709,236,134.70 = 291,425,561.80/x - Step 3: Cross multiply
472,824,089.80x = 709,236,134.70 × 291,425,561.80 - Step 4: Simplify right side
472,824,089.80x = 206,689,539,003,808,000 - Step 5: Solve for x
x = 206,689,539,003,808,000/472,824,089.80 - Step 6: Final answer
x = 437,138,342.70
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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.