Finding the Fourth Proportional to 128,386,402.58, 192,459,795.72 and 50,663,950.19
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Solution
The fourth proportional to 128,386,402.58, 192,459,795.72 and 50,663,950.19 is: 75,948,646.48
Step by Step Solution
- Step 1: Write the proportion equation
128,386,402.58 : 192,459,795.72 = 50,663,950.19 : x - Step 2: Convert to fraction form
128,386,402.58/192,459,795.72 = 50,663,950.19/x - Step 3: Cross multiply
128,386,402.58x = 192,459,795.72 × 50,663,950.19 - Step 4: Simplify right side
128,386,402.58x = 9,750,773,502,973,356 - Step 5: Solve for x
x = 9,750,773,502,973,356/128,386,402.58 - Step 6: Final answer
x = 75,948,646.48
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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.