Finding the Fourth Proportional to 963,309,491.28, 1,329,403,570.20 and 539,930,908.08
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Solution
The fourth proportional to 963,309,491.28, 1,329,403,570.20 and 539,930,908.08 is: 745,125,095.68
Step by Step Solution
- Step 1: Write the proportion equation
963,309,491.28 : 1,329,403,570.20 = 539,930,908.08 : x - Step 2: Convert to fraction form
963,309,491.28/1,329,403,570.20 = 539,930,908.08/x - Step 3: Cross multiply
963,309,491.28x = 1,329,403,570.20 × 539,930,908.08 - Step 4: Simplify right side
963,309,491.28x = 717,786,076,862,880,128 - Step 5: Solve for x
x = 717,786,076,862,880,128/963,309,491.28 - Step 6: Final answer
x = 745,125,095.68
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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.