Finding the Fourth Proportional to 395,386,272,430.20, 593,079,408,645.30 and 130,376,627,911.80
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Solution
The fourth proportional to 395,386,272,430.20, 593,079,408,645.30 and 130,376,627,911.80 is: 195,564,941,867.70
Step by Step Solution
- Step 1: Write the proportion equation
395,386,272,430.20 : 593,079,408,645.30 = 130,376,627,911.80 : x - Step 2: Convert to fraction form
395,386,272,430.20/593,079,408,645.30 = 130,376,627,911.80/x - Step 3: Cross multiply
395,386,272,430.20x = 593,079,408,645.30 × 130,376,627,911.80 - Step 4: Simplify right side
395,386,272,430.20x = 77,323,693,383,098,673,659,904 - Step 5: Solve for x
x = 77,323,693,383,098,673,659,904/395,386,272,430.20 - Step 6: Final answer
x = 195,564,941,867.70
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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.