Finding the Fourth Proportional to 1,213,197,903,675.70, 1,673,406,956,055.90 and 780,197,716,992.24
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Solution
The fourth proportional to 1,213,197,903,675.70, 1,673,406,956,055.90 and 780,197,716,992.24 is: 1,076,154,420,278.94
Step by Step Solution
- Step 1: Write the proportion equation
1,213,197,903,675.70 : 1,673,406,956,055.90 = 780,197,716,992.24 : x - Step 2: Convert to fraction form
1,213,197,903,675.70/1,673,406,956,055.90 = 780,197,716,992.24/x - Step 3: Cross multiply
1,213,197,903,675.70x = 1,673,406,956,055.90 × 780,197,716,992.24 - Step 4: Simplify right side
1,213,197,903,675.70x = 1,305,588,286,713,746,841,141,248 - Step 5: Solve for x
x = 1,305,588,286,713,746,841,141,248/1,213,197,903,675.70 - Step 6: Final answer
x = 1,076,154,420,278.94
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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.