Finding the Fourth Proportional to 1,121,102,314.80, 1,681,653,472.20 and 1,056,532,233.30
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Solution
The fourth proportional to 1,121,102,314.80, 1,681,653,472.20 and 1,056,532,233.30 is: 1,584,798,349.95
Step by Step Solution
- Step 1: Write the proportion equation
1,121,102,314.80 : 1,681,653,472.20 = 1,056,532,233.30 : x - Step 2: Convert to fraction form
1,121,102,314.80/1,681,653,472.20 = 1,056,532,233.30/x - Step 3: Cross multiply
1,121,102,314.80x = 1,681,653,472.20 × 1,056,532,233.30 - Step 4: Simplify right side
1,121,102,314.80x = 1,776,721,098,620,165,376 - Step 5: Solve for x
x = 1,776,721,098,620,165,376/1,121,102,314.80 - Step 6: Final answer
x = 1,584,798,349.95
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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.