Finding the Fourth Proportional to 2,931,423,833.36, 4,397,132,950.68 and 750,386,470.16
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Solution
The fourth proportional to 2,931,423,833.36, 4,397,132,950.68 and 750,386,470.16 is: 1,125,578,988.66
Step by Step Solution
- Step 1: Write the proportion equation
2,931,423,833.36 : 4,397,132,950.68 = 750,386,470.16 : x - Step 2: Convert to fraction form
2,931,423,833.36/4,397,132,950.68 = 750,386,470.16/x - Step 3: Cross multiply
2,931,423,833.36x = 4,397,132,950.68 × 750,386,470.16 - Step 4: Simplify right side
2,931,423,833.36x = 3,299,549,073,684,990,464 - Step 5: Solve for x
x = 3,299,549,073,684,990,464/2,931,423,833.36 - Step 6: Final answer
x = 1,125,578,988.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.