Finding the Fourth Proportional to 1,248,951,547.64, 1,723,555,161.42 and 684,346,710.08
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Solution
The fourth proportional to 1,248,951,547.64, 1,723,555,161.42 and 684,346,710.08 is: 944,399,569.85
Step by Step Solution
- Step 1: Write the proportion equation
1,248,951,547.64 : 1,723,555,161.42 = 684,346,710.08 : x - Step 2: Convert to fraction form
1,248,951,547.64/1,723,555,161.42 = 684,346,710.08/x - Step 3: Cross multiply
1,248,951,547.64x = 1,723,555,161.42 × 684,346,710.08 - Step 4: Simplify right side
1,248,951,547.64x = 1,179,509,304,359,180,544 - Step 5: Solve for x
x = 1,179,509,304,359,180,544/1,248,951,547.64 - Step 6: Final answer
x = 944,399,569.85
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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.