Finding the Fourth Proportional to 812,013,736.41, 1,120,386,875.96 and 459,589,727.12
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Solution
The fourth proportional to 812,013,736.41, 1,120,386,875.96 and 459,589,727.12 is: 634,125,108.35
Step by Step Solution
- Step 1: Write the proportion equation
812,013,736.41 : 1,120,386,875.96 = 459,589,727.12 : x - Step 2: Convert to fraction form
812,013,736.41/1,120,386,875.96 = 459,589,727.12/x - Step 3: Cross multiply
812,013,736.41x = 1,120,386,875.96 × 459,589,727.12 - Step 4: Simplify right side
812,013,736.41x = 514,918,298,583,385,792 - Step 5: Solve for x
x = 514,918,298,583,385,792/812,013,736.41 - Step 6: Final answer
x = 634,125,108.35
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.