Finding the Fourth Proportional to 1,941,692,694.49, 2,912,593,307.58 and 631,594,753.23
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Solution
The fourth proportional to 1,941,692,694.49, 2,912,593,307.58 and 631,594,753.23 is: 947,409,781.47
Step by Step Solution
- Step 1: Write the proportion equation
1,941,692,694.49 : 2,912,593,307.58 = 631,594,753.23 : x - Step 2: Convert to fraction form
1,941,692,694.49/2,912,593,307.58 = 631,594,753.23/x - Step 3: Cross multiply
1,941,692,694.49x = 2,912,593,307.58 × 631,594,753.23 - Step 4: Simplify right side
1,941,692,694.49x = 1,839,578,651,360,339,712 - Step 5: Solve for x
x = 1,839,578,651,360,339,712/1,941,692,694.49 - Step 6: Final answer
x = 947,409,781.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.