Finding the Fourth Proportional to 1,664,122,707.20, 2,496,184,060.80 and 804,159,315.20
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Solution
The fourth proportional to 1,664,122,707.20, 2,496,184,060.80 and 804,159,315.20 is: 1,206,238,972.80
Step by Step Solution
- Step 1: Write the proportion equation
1,664,122,707.20 : 2,496,184,060.80 = 804,159,315.20 : x - Step 2: Convert to fraction form
1,664,122,707.20/2,496,184,060.80 = 804,159,315.20/x - Step 3: Cross multiply
1,664,122,707.20x = 2,496,184,060.80 × 804,159,315.20 - Step 4: Simplify right side
1,664,122,707.20x = 2,007,329,664,946,083,328 - Step 5: Solve for x
x = 2,007,329,664,946,083,328/1,664,122,707.20 - Step 6: Final answer
x = 1,206,238,972.80
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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.