Finding the Fourth Proportional to 3,447,849,153.96, 4,758,031,804.43 and 1,861,940,972.09
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Solution
The fourth proportional to 3,447,849,153.96, 4,758,031,804.43 and 1,861,940,972.09 is: 2,569,478,526.34
Step by Step Solution
- Step 1: Write the proportion equation
3,447,849,153.96 : 4,758,031,804.43 = 1,861,940,972.09 : x - Step 2: Convert to fraction form
3,447,849,153.96/4,758,031,804.43 = 1,861,940,972.09/x - Step 3: Cross multiply
3,447,849,153.96x = 4,758,031,804.43 × 1,861,940,972.09 - Step 4: Simplify right side
3,447,849,153.96x = 8,859,174,363,167,089,664 - Step 5: Solve for x
x = 8,859,174,363,167,089,664/3,447,849,153.96 - Step 6: Final answer
x = 2,569,478,526.34
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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.