Finding the Fourth Proportional to 6,780,386,432.19, 9,357,456,694.01 and 4,067,755,831.05
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Solution
The fourth proportional to 6,780,386,432.19, 9,357,456,694.01 and 4,067,755,831.05 is: 5,613,817,060.65
Step by Step Solution
- Step 1: Write the proportion equation
6,780,386,432.19 : 9,357,456,694.01 = 4,067,755,831.05 : x - Step 2: Convert to fraction form
6,780,386,432.19/9,357,456,694.01 = 4,067,755,831.05/x - Step 3: Cross multiply
6,780,386,432.19x = 9,357,456,694.01 × 4,067,755,831.05 - Step 4: Simplify right side
6,780,386,432.19x = 38,063,849,030,857,039,872 - Step 5: Solve for x
x = 38,063,849,030,857,039,872/6,780,386,432.19 - Step 6: Final answer
x = 5,613,817,060.65
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1.5x scale
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.