Finding the Fourth Proportional to 1,389,143,939.20, 2,082,130,885.68 and 559,566,752.32
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Solution
The fourth proportional to 1,389,143,939.20, 2,082,130,885.68 and 559,566,752.32 is: 838,711,658.83
Step by Step Solution
- Step 1: Write the proportion equation
1,389,143,939.20 : 2,082,130,885.68 = 559,566,752.32 : x - Step 2: Convert to fraction form
1,389,143,939.20/2,082,130,885.68 = 559,566,752.32/x - Step 3: Cross multiply
1,389,143,939.20x = 2,082,130,885.68 × 559,566,752.32 - Step 4: Simplify right side
1,389,143,939.20x = 1,165,091,217,605,122,816 - Step 5: Solve for x
x = 1,165,091,217,605,122,816/1,389,143,939.20 - Step 6: Final answer
x = 838,711,658.83
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.