Finding the Fourth Proportional to 13,941,670,992.18, 19,239,571,122.56 and 7,920,506,793.67
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Solution
The fourth proportional to 13,941,670,992.18, 19,239,571,122.56 and 7,920,506,793.67 is: 10,930,336,390.02
Step by Step Solution
- Step 1: Write the proportion equation
13,941,670,992.18 : 19,239,571,122.56 = 7,920,506,793.67 : x - Step 2: Convert to fraction form
13,941,670,992.18/19,239,571,122.56 = 7,920,506,793.67/x - Step 3: Cross multiply
13,941,670,992.18x = 19,239,571,122.56 × 7,920,506,793.67 - Step 4: Simplify right side
13,941,670,992.18x = 152,387,153,783,501,357,056 - Step 5: Solve for x
x = 152,387,153,783,501,357,056/13,941,670,992.18 - Step 6: Final answer
x = 10,930,336,390.02
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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.