Finding the Fourth Proportional to 905,390,530,883.66, 1,249,442,817,022.80 and 493,867,977,651.23
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Solution
The fourth proportional to 905,390,530,883.66, 1,249,442,817,022.80 and 493,867,977,651.23 is: 681,539,928,003.95
Step by Step Solution
- Step 1: Write the proportion equation
905,390,530,883.66 : 1,249,442,817,022.80 = 493,867,977,651.23 : x - Step 2: Convert to fraction form
905,390,530,883.66/1,249,442,817,022.80 = 493,867,977,651.23/x - Step 3: Cross multiply
905,390,530,883.66x = 1,249,442,817,022.80 × 493,867,977,651.23 - Step 4: Simplify right side
905,390,530,883.66x = 617,059,797,233,906,038,603,776 - Step 5: Solve for x
x = 617,059,797,233,906,038,603,776/905,390,530,883.66 - Step 6: Final answer
x = 681,539,928,003.95
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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.