Finding the Fourth Proportional to 1,258,931,910,815.70, 1,737,326,023,473.70 and 680,868,429,591.84
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Solution
The fourth proportional to 1,258,931,910,815.70, 1,737,326,023,473.70 and 680,868,429,591.84 is: 939,598,425,561.51
Step by Step Solution
- Step 1: Write the proportion equation
1,258,931,910,815.70 : 1,737,326,023,473.70 = 680,868,429,591.84 : x - Step 2: Convert to fraction form
1,258,931,910,815.70/1,737,326,023,473.70 = 680,868,429,591.84/x - Step 3: Cross multiply
1,258,931,910,815.70x = 1,737,326,023,473.70 × 680,868,429,591.84 - Step 4: Simplify right side
1,258,931,910,815.70x = 1,182,890,441,291,574,150,168,576 - Step 5: Solve for x
x = 1,182,890,441,291,574,150,168,576/1,258,931,910,815.70 - Step 6: Final answer
x = 939,598,425,561.51
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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.