Finding the Fourth Proportional to 1,972,405,465.57, 2,963,328,135.66 and 1,264,740,505.69
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Solution
The fourth proportional to 1,972,405,465.57, 2,963,328,135.66 and 1,264,740,505.69 is: 1,900,137,263.99
Step by Step Solution
- Step 1: Write the proportion equation
1,972,405,465.57 : 2,963,328,135.66 = 1,264,740,505.69 : x - Step 2: Convert to fraction form
1,972,405,465.57/2,963,328,135.66 = 1,264,740,505.69/x - Step 3: Cross multiply
1,972,405,465.57x = 2,963,328,135.66 × 1,264,740,505.69 - Step 4: Simplify right side
1,972,405,465.57x = 3,747,841,124,820,033,536 - Step 5: Solve for x
x = 3,747,841,124,820,033,536/1,972,405,465.57 - Step 6: Final answer
x = 1,900,137,263.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.