Finding the Fourth Proportional to 1,607,818,641.87, 2,411,157,221.58 and 471,738,247.17
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Solution
The fourth proportional to 1,607,818,641.87, 2,411,157,221.58 and 471,738,247.17 is: 707,439,913.77
Step by Step Solution
- Step 1: Write the proportion equation
1,607,818,641.87 : 2,411,157,221.58 = 471,738,247.17 : x - Step 2: Convert to fraction form
1,607,818,641.87/2,411,157,221.58 = 471,738,247.17/x - Step 3: Cross multiply
1,607,818,641.87x = 2,411,157,221.58 × 471,738,247.17 - Step 4: Simplify right side
1,607,818,641.87x = 1,137,435,081,359,436,544 - Step 5: Solve for x
x = 1,137,435,081,359,436,544/1,607,818,641.87 - Step 6: Final answer
x = 707,439,913.77
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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.