Finding the Fourth Proportional to 1,139,355,123.26, 1,572,375,965.70 and 637,559,526.08
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Solution
The fourth proportional to 1,139,355,123.26, 1,572,375,965.70 and 637,559,526.08 is: 879,869,019.80
Step by Step Solution
- Step 1: Write the proportion equation
1,139,355,123.26 : 1,572,375,965.70 = 637,559,526.08 : x - Step 2: Convert to fraction form
1,139,355,123.26/1,572,375,965.70 = 637,559,526.08/x - Step 3: Cross multiply
1,139,355,123.26x = 1,572,375,965.70 × 637,559,526.08 - Step 4: Simplify right side
1,139,355,123.26x = 1,002,483,275,503,412,608 - Step 5: Solve for x
x = 1,002,483,275,503,412,608/1,139,355,123.26 - Step 6: Final answer
x = 879,869,019.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.