Finding the Fourth Proportional to 221,353,705.18, 331,808,349.05 and 75,687,646.17
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Solution
The fourth proportional to 221,353,705.18, 331,808,349.05 and 75,687,646.17 is: 113,455,489.25
Step by Step Solution
- Step 1: Write the proportion equation
221,353,705.18 : 331,808,349.05 = 75,687,646.17 : x - Step 2: Convert to fraction form
221,353,705.18/331,808,349.05 = 75,687,646.17/x - Step 3: Cross multiply
221,353,705.18x = 331,808,349.05 × 75,687,646.17 - Step 4: Simplify right side
221,353,705.18x = 25,113,792,919,148,256 - Step 5: Solve for x
x = 25,113,792,919,148,256/221,353,705.18 - Step 6: Final answer
x = 113,455,489.25
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.