Finding the Fourth Proportional to 298,840,394.18, 412,242,909.82 and 243,148,089.26
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Solution
The fourth proportional to 298,840,394.18, 412,242,909.82 and 243,148,089.26 is: 335,416,756.85
Step by Step Solution
- Step 1: Write the proportion equation
298,840,394.18 : 412,242,909.82 = 243,148,089.26 : x - Step 2: Convert to fraction form
298,840,394.18/412,242,909.82 = 243,148,089.26/x - Step 3: Cross multiply
298,840,394.18x = 412,242,909.82 × 243,148,089.26 - Step 4: Simplify right side
298,840,394.18x = 100,236,075,831,046,400 - Step 5: Solve for x
x = 100,236,075,831,046,400/298,840,394.18 - Step 6: Final answer
x = 335,416,756.85
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.