Finding the Fourth Proportional to 1,820,578,690.72, 2,512,398,595.98 and 985,203,261.01
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Solution
The fourth proportional to 1,820,578,690.72, 2,512,398,595.98 and 985,203,261.01 is: 1,359,580,501.70
Step by Step Solution
- Step 1: Write the proportion equation
1,820,578,690.72 : 2,512,398,595.98 = 985,203,261.01 : x - Step 2: Convert to fraction form
1,820,578,690.72/2,512,398,595.98 = 985,203,261.01/x - Step 3: Cross multiply
1,820,578,690.72x = 2,512,398,595.98 × 985,203,261.01 - Step 4: Simplify right side
1,820,578,690.72x = 2,475,223,289,716,441,600 - Step 5: Solve for x
x = 2,475,223,289,716,441,600/1,820,578,690.72 - Step 6: Final answer
x = 1,359,580,501.70
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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.