Finding the Fourth Proportional to 1,641,731,937.66, 2,265,592,258.80 and 889,046,412.30
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Solution
The fourth proportional to 1,641,731,937.66, 2,265,592,258.80 and 889,046,412.30 is: 1,226,885,232.12
Step by Step Solution
- Step 1: Write the proportion equation
1,641,731,937.66 : 2,265,592,258.80 = 889,046,412.30 : x - Step 2: Convert to fraction form
1,641,731,937.66/2,265,592,258.80 = 889,046,412.30/x - Step 3: Cross multiply
1,641,731,937.66x = 2,265,592,258.80 × 889,046,412.30 - Step 4: Simplify right side
1,641,731,937.66x = 2,014,216,669,420,793,088 - Step 5: Solve for x
x = 2,014,216,669,420,793,088/1,641,731,937.66 - Step 6: Final answer
x = 1,226,885,232.12
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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.