Finding the Fourth Proportional to 1,053,255,921.12, 1,454,470,194.96 and 788,478,235.20
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Solution
The fourth proportional to 1,053,255,921.12, 1,454,470,194.96 and 788,478,235.20 is: 1,088,831,374.67
Step by Step Solution
- Step 1: Write the proportion equation
1,053,255,921.12 : 1,454,470,194.96 = 788,478,235.20 : x - Step 2: Convert to fraction form
1,053,255,921.12/1,454,470,194.96 = 788,478,235.20/x - Step 3: Cross multiply
1,053,255,921.12x = 1,454,470,194.96 × 788,478,235.20 - Step 4: Simplify right side
1,053,255,921.12x = 1,146,818,092,473,060,864 - Step 5: Solve for x
x = 1,146,818,092,473,060,864/1,053,255,921.12 - Step 6: Final answer
x = 1,088,831,374.67
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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.