Finding the Fourth Proportional to 808,571,718.80, 1,115,829,715.96 and 437,293,750.17
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Solution
The fourth proportional to 808,571,718.80, 1,115,829,715.96 and 437,293,750.17 is: 603,465,777.62
Step by Step Solution
- Step 1: Write the proportion equation
808,571,718.80 : 1,115,829,715.96 = 437,293,750.17 : x - Step 2: Convert to fraction form
808,571,718.80/1,115,829,715.96 = 437,293,750.17/x - Step 3: Cross multiply
808,571,718.80x = 1,115,829,715.96 × 437,293,750.17 - Step 4: Simplify right side
808,571,718.80x = 487,945,361,048,027,072 - Step 5: Solve for x
x = 487,945,361,048,027,072/808,571,718.80 - Step 6: Final answer
x = 603,465,777.62
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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.