Finding the Fourth Proportional to 1,492,403,695.20, 2,238,605,542.80 and 715,649,529.60
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Solution
The fourth proportional to 1,492,403,695.20, 2,238,605,542.80 and 715,649,529.60 is: 1,073,474,294.40
Step by Step Solution
- Step 1: Write the proportion equation
1,492,403,695.20 : 2,238,605,542.80 = 715,649,529.60 : x - Step 2: Convert to fraction form
1,492,403,695.20/2,238,605,542.80 = 715,649,529.60/x - Step 3: Cross multiply
1,492,403,695.20x = 2,238,605,542.80 × 715,649,529.60 - Step 4: Simplify right side
1,492,403,695.20x = 1,602,057,003,664,772,864 - Step 5: Solve for x
x = 1,602,057,003,664,772,864/1,492,403,695.20 - Step 6: Final answer
x = 1,073,474,294.40
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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.