Finding the Fourth Proportional to 429,689,294.91, 643,249,266.17 and 263,168,478.36
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Solution
The fourth proportional to 429,689,294.91, 643,249,266.17 and 263,168,478.36 is: 393,965,901.85
Step by Step Solution
- Step 1: Write the proportion equation
429,689,294.91 : 643,249,266.17 = 263,168,478.36 : x - Step 2: Convert to fraction form
429,689,294.91/643,249,266.17 = 263,168,478.36/x - Step 3: Cross multiply
429,689,294.91x = 643,249,266.17 × 263,168,478.36 - Step 4: Simplify right side
429,689,294.91x = 169,282,930,582,829,696 - Step 5: Solve for x
x = 169,282,930,582,829,696/429,689,294.91 - Step 6: Final answer
x = 393,965,901.85
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.