Finding the Fourth Proportional to 219,208,664.19, 302,507,931.43 and 131,102,647.74
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Solution
The fourth proportional to 219,208,664.19, 302,507,931.43 and 131,102,647.74 is: 180,921,638.84
Step by Step Solution
- Step 1: Write the proportion equation
219,208,664.19 : 302,507,931.43 = 131,102,647.74 : x - Step 2: Convert to fraction form
219,208,664.19/302,507,931.43 = 131,102,647.74/x - Step 3: Cross multiply
219,208,664.19x = 302,507,931.43 × 131,102,647.74 - Step 4: Simplify right side
219,208,664.19x = 39,659,590,774,447,376 - Step 5: Solve for x
x = 39,659,590,774,447,376/219,208,664.19 - Step 6: Final answer
x = 180,921,638.84
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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.