Finding the Fourth Proportional to 7,851,943,472.80, 10,835,717,138.40 and 4,283,639,565.36
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Solution
The fourth proportional to 7,851,943,472.80, 10,835,717,138.40 and 4,283,639,565.36 is: 5,911,441,774.12
Step by Step Solution
- Step 1: Write the proportion equation
7,851,943,472.80 : 10,835,717,138.40 = 4,283,639,565.36 : x - Step 2: Convert to fraction form
7,851,943,472.80/10,835,717,138.40 = 4,283,639,565.36/x - Step 3: Cross multiply
7,851,943,472.80x = 10,835,717,138.40 × 4,283,639,565.36 - Step 4: Simplify right side
7,851,943,472.80x = 46,416,306,653,099,679,744 - Step 5: Solve for x
x = 46,416,306,653,099,679,744/7,851,943,472.80 - Step 6: Final answer
x = 5,911,441,774.12
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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.