Finding the Fourth Proportional to 1,069,698,916.70, 1,475,963,450.84 and 617,569,049.18
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Solution
The fourth proportional to 1,069,698,916.70, 1,475,963,450.84 and 617,569,049.18 is: 852,117,666.69
Step by Step Solution
- Step 1: Write the proportion equation
1,069,698,916.70 : 1,475,963,450.84 = 617,569,049.18 : x - Step 2: Convert to fraction form
1,069,698,916.70/1,475,963,450.84 = 617,569,049.18/x - Step 3: Cross multiply
1,069,698,916.70x = 1,475,963,450.84 × 617,569,049.18 - Step 4: Simplify right side
1,069,698,916.70x = 911,509,344,959,690,368 - Step 5: Solve for x
x = 911,509,344,959,690,368/1,069,698,916.70 - Step 6: Final answer
x = 852,117,666.69
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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.