Finding the Fourth Proportional to 986,896,369.80, 1,480,344,554.70 and 793,186,125.30
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Solution
The fourth proportional to 986,896,369.80, 1,480,344,554.70 and 793,186,125.30 is: 1,189,779,187.95
Step by Step Solution
- Step 1: Write the proportion equation
986,896,369.80 : 1,480,344,554.70 = 793,186,125.30 : x - Step 2: Convert to fraction form
986,896,369.80/1,480,344,554.70 = 793,186,125.30/x - Step 3: Cross multiply
986,896,369.80x = 1,480,344,554.70 × 793,186,125.30 - Step 4: Simplify right side
986,896,369.80x = 1,174,188,761,451,446,784 - Step 5: Solve for x
x = 1,174,188,761,451,446,784/986,896,369.80 - Step 6: Final answer
x = 1,189,779,187.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.