Finding the Fourth Proportional to 916,937,416.20, 1,375,406,124.30 and 832,284,769.80
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Solution
The fourth proportional to 916,937,416.20, 1,375,406,124.30 and 832,284,769.80 is: 1,248,427,154.70
Step by Step Solution
- Step 1: Write the proportion equation
916,937,416.20 : 1,375,406,124.30 = 832,284,769.80 : x - Step 2: Convert to fraction form
916,937,416.20/1,375,406,124.30 = 832,284,769.80/x - Step 3: Cross multiply
916,937,416.20x = 1,375,406,124.30 × 832,284,769.80 - Step 4: Simplify right side
916,937,416.20x = 1,144,729,569,544,535,552 - Step 5: Solve for x
x = 1,144,729,569,544,535,552/916,937,416.20 - Step 6: Final answer
x = 1,248,427,154.70
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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.