Finding the Fourth Proportional to 2,159,624,985.60, 2,980,267,641.36 and 1,169,527,745.28
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Solution
The fourth proportional to 2,159,624,985.60, 2,980,267,641.36 and 1,169,527,745.28 is: 1,613,940,252.67
Step by Step Solution
- Step 1: Write the proportion equation
2,159,624,985.60 : 2,980,267,641.36 = 1,169,527,745.28 : x - Step 2: Convert to fraction form
2,159,624,985.60/2,980,267,641.36 = 1,169,527,745.28/x - Step 3: Cross multiply
2,159,624,985.60x = 2,980,267,641.36 × 1,169,527,745.28 - Step 4: Simplify right side
2,159,624,985.60x = 3,485,505,694,930,704,384 - Step 5: Solve for x
x = 3,485,505,694,930,704,384/2,159,624,985.60 - Step 6: Final answer
x = 1,613,940,252.67
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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.