Finding the Fourth Proportional to 1,617,088,780.80, 2,426,472,979.20 and 755,445,772.80
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Solution
The fourth proportional to 1,617,088,780.80, 2,426,472,979.20 and 755,445,772.80 is: 1,133,560,987.32
Step by Step Solution
- Step 1: Write the proportion equation
1,617,088,780.80 : 2,426,472,979.20 = 755,445,772.80 : x - Step 2: Convert to fraction form
1,617,088,780.80/2,426,472,979.20 = 755,445,772.80/x - Step 3: Cross multiply
1,617,088,780.80x = 2,426,472,979.20 × 755,445,772.80 - Step 4: Simplify right side
1,617,088,780.80x = 1,833,068,754,950,062,080 - Step 5: Solve for x
x = 1,833,068,754,950,062,080/1,617,088,780.80 - Step 6: Final answer
x = 1,133,560,987.32
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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.