Finding the Fourth Proportional to 319,262,571,560.58, 478,895,099,785.95 and 77,239,293,377.99
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Solution
The fourth proportional to 319,262,571,560.58, 478,895,099,785.95 and 77,239,293,377.99 is: 115,859,240,652.11
Step by Step Solution
- Step 1: Write the proportion equation
319,262,571,560.58 : 478,895,099,785.95 = 77,239,293,377.99 : x - Step 2: Convert to fraction form
319,262,571,560.58/478,895,099,785.95 = 77,239,293,377.99/x - Step 3: Cross multiply
319,262,571,560.58x = 478,895,099,785.95 × 77,239,293,377.99 - Step 4: Simplify right side
319,262,571,560.58x = 36,989,519,109,648,791,109,632 - Step 5: Solve for x
x = 36,989,519,109,648,791,109,632/319,262,571,560.58 - Step 6: Final answer
x = 115,859,240,652.11
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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.