Finding the Fourth Proportional to 991,246,353.75, 1,487,038,924.71 and 408,662,129.12
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Solution
The fourth proportional to 991,246,353.75, 1,487,038,924.71 and 408,662,129.12 is: 613,063,029.94
Step by Step Solution
- Step 1: Write the proportion equation
991,246,353.75 : 1,487,038,924.71 = 408,662,129.12 : x - Step 2: Convert to fraction form
991,246,353.75/1,487,038,924.71 = 408,662,129.12/x - Step 3: Cross multiply
991,246,353.75x = 1,487,038,924.71 × 408,662,129.12 - Step 4: Simplify right side
991,246,353.75x = 607,696,493,048,868,864 - Step 5: Solve for x
x = 607,696,493,048,868,864/991,246,353.75 - Step 6: Final answer
x = 613,063,029.94
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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.