Finding the Fourth Proportional to 1,654,216,652.40, 2,282,818,990.68 and 911,660,725.68
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Solution
The fourth proportional to 1,654,216,652.40, 2,282,818,990.68 and 911,660,725.68 is: 1,258,091,807.15
Step by Step Solution
- Step 1: Write the proportion equation
1,654,216,652.40 : 2,282,818,990.68 = 911,660,725.68 : x - Step 2: Convert to fraction form
1,654,216,652.40/2,282,818,990.68 = 911,660,725.68/x - Step 3: Cross multiply
1,654,216,652.40x = 2,282,818,990.68 × 911,660,725.68 - Step 4: Simplify right side
1,654,216,652.40x = 2,081,156,417,639,413,760 - Step 5: Solve for x
x = 2,081,156,417,639,413,760/1,654,216,652.40 - Step 6: Final answer
x = 1,258,091,807.15
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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.