Finding the Fourth Proportional to 1,580,999,541.08, 2,181,803,227.36 and 866,529,378.02
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Solution
The fourth proportional to 1,580,999,541.08, 2,181,803,227.36 and 866,529,378.02 is: 1,195,823,619.45
Step by Step Solution
- Step 1: Write the proportion equation
1,580,999,541.08 : 2,181,803,227.36 = 866,529,378.02 : x - Step 2: Convert to fraction form
1,580,999,541.08/2,181,803,227.36 = 866,529,378.02/x - Step 3: Cross multiply
1,580,999,541.08x = 2,181,803,227.36 × 866,529,378.02 - Step 4: Simplify right side
1,580,999,541.08x = 1,890,596,593,565,418,752 - Step 5: Solve for x
x = 1,890,596,593,565,418,752/1,580,999,541.08 - Step 6: Final answer
x = 1,195,823,619.45
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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.