Finding the Fourth Proportional to 986,187,678.96, 1,360,939,730.70 and 534,069,155.90
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Solution
The fourth proportional to 986,187,678.96, 1,360,939,730.70 and 534,069,155.90 is: 737,015,832.50
Step by Step Solution
- Step 1: Write the proportion equation
986,187,678.96 : 1,360,939,730.70 = 534,069,155.90 : x - Step 2: Convert to fraction form
986,187,678.96/1,360,939,730.70 = 534,069,155.90/x - Step 3: Cross multiply
986,187,678.96x = 1,360,939,730.70 × 534,069,155.90 - Step 4: Simplify right side
986,187,678.96x = 726,835,933,205,722,368 - Step 5: Solve for x
x = 726,835,933,205,722,368/986,187,678.96 - Step 6: Final answer
x = 737,015,832.50
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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.