Finding the Fourth Proportional to 1,069,698,999.26, 1,475,963,564.85 and 617,569,131.84
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Solution
The fourth proportional to 1,069,698,999.26, 1,475,963,564.85 and 617,569,131.84 is: 852,117,780.81
Step by Step Solution
- Step 1: Write the proportion equation
1,069,698,999.26 : 1,475,963,564.85 = 617,569,131.84 : x - Step 2: Convert to fraction form
1,069,698,999.26/1,475,963,564.85 = 617,569,131.84/x - Step 3: Cross multiply
1,069,698,999.26x = 1,475,963,564.85 × 617,569,131.84 - Step 4: Simplify right side
1,069,698,999.26x = 911,509,537,377,119,744 - Step 5: Solve for x
x = 911,509,537,377,119,744/1,069,698,999.26 - Step 6: Final answer
x = 852,117,780.81
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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.