Finding the Fourth Proportional to 1,156,324,925.99, 1,595,730,422.12 and 627,689,270.21
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Solution
The fourth proportional to 1,156,324,925.99, 1,595,730,422.12 and 627,689,270.21 is: 866,212,291.71
Step by Step Solution
- Step 1: Write the proportion equation
1,156,324,925.99 : 1,595,730,422.12 = 627,689,270.21 : x - Step 2: Convert to fraction form
1,156,324,925.99/1,595,730,422.12 = 627,689,270.21/x - Step 3: Cross multiply
1,156,324,925.99x = 1,595,730,422.12 × 627,689,270.21 - Step 4: Simplify right side
1,156,324,925.99x = 1,001,622,864,101,281,024 - Step 5: Solve for x
x = 1,001,622,864,101,281,024/1,156,324,925.99 - Step 6: Final answer
x = 866,212,291.71
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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.