Finding the Fourth Proportional to 876,706,430.18, 1,209,811,880.95 and 480,231,178.79
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Solution
The fourth proportional to 876,706,430.18, 1,209,811,880.95 and 480,231,178.79 is: 662,695,476.73
Step by Step Solution
- Step 1: Write the proportion equation
876,706,430.18 : 1,209,811,880.95 = 480,231,178.79 : x - Step 2: Convert to fraction form
876,706,430.18/1,209,811,880.95 = 480,231,178.79/x - Step 3: Cross multiply
876,706,430.18x = 1,209,811,880.95 × 480,231,178.79 - Step 4: Simplify right side
876,706,430.18x = 580,989,385,695,516,032 - Step 5: Solve for x
x = 580,989,385,695,516,032/876,706,430.18 - Step 6: Final answer
x = 662,695,476.73
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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.