Finding the Fourth Proportional to 976,349,278.62, 1,346,582,406.06 and 642,164,874.84
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Solution
The fourth proportional to 976,349,278.62, 1,346,582,406.06 and 642,164,874.84 is: 885,674,769.45
Step by Step Solution
- Step 1: Write the proportion equation
976,349,278.62 : 1,346,582,406.06 = 642,164,874.84 : x - Step 2: Convert to fraction form
976,349,278.62/1,346,582,406.06 = 642,164,874.84/x - Step 3: Cross multiply
976,349,278.62x = 1,346,582,406.06 × 642,164,874.84 - Step 4: Simplify right side
976,349,278.62x = 864,727,922,249,265,920 - Step 5: Solve for x
x = 864,727,922,249,265,920/976,349,278.62 - Step 6: Final answer
x = 885,674,769.45
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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.