Finding the Fourth Proportional to 1,605,802,890.45, 2,408,651,333.67 and 660,368,257.95
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Solution
The fourth proportional to 1,605,802,890.45, 2,408,651,333.67 and 660,368,257.95 is: 990,530,590.45
Step by Step Solution
- Step 1: Write the proportion equation
1,605,802,890.45 : 2,408,651,333.67 = 660,368,257.95 : x - Step 2: Convert to fraction form
1,605,802,890.45/2,408,651,333.67 = 660,368,257.95/x - Step 3: Cross multiply
1,605,802,890.45x = 2,408,651,333.67 × 660,368,257.95 - Step 4: Simplify right side
1,605,802,890.45x = 1,590,596,885,224,602,368 - Step 5: Solve for x
x = 1,590,596,885,224,602,368/1,605,802,890.45 - Step 6: Final answer
x = 990,530,590.45
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1.5x scale
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.