Finding the Fourth Proportional to 905,596,927.86, 1,249,716,247.99 and 509,121,684.70
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Solution
The fourth proportional to 905,596,927.86, 1,249,716,247.99 and 509,121,684.70 is: 702,583,701.42
Step by Step Solution
- Step 1: Write the proportion equation
905,596,927.86 : 1,249,716,247.99 = 509,121,684.70 : x - Step 2: Convert to fraction form
905,596,927.86/1,249,716,247.99 = 509,121,684.70/x - Step 3: Cross multiply
905,596,927.86x = 1,249,716,247.99 × 509,121,684.70 - Step 4: Simplify right side
905,596,927.86x = 636,257,641,573,631,744 - Step 5: Solve for x
x = 636,257,641,573,631,744/905,596,927.86 - Step 6: Final answer
x = 702,583,701.42
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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.