Finding the Fourth Proportional to 1,114,244,070.24, 1,536,036,229.68 and 778,674,756.96
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Solution
The fourth proportional to 1,114,244,070.24, 1,536,036,229.68 and 778,674,756.96 is: 1,073,438,638.60
Step by Step Solution
- Step 1: Write the proportion equation
1,114,244,070.24 : 1,536,036,229.68 = 778,674,756.96 : x - Step 2: Convert to fraction form
1,114,244,070.24/1,536,036,229.68 = 778,674,756.96/x - Step 3: Cross multiply
1,114,244,070.24x = 1,536,036,229.68 × 778,674,756.96 - Step 4: Simplify right side
1,114,244,070.24x = 1,196,072,637,827,828,736 - Step 5: Solve for x
x = 1,196,072,637,827,828,736/1,114,244,070.24 - Step 6: Final answer
x = 1,073,438,638.60
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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.