Finding the Fourth Proportional to 431,267,076, 646,641,684.07 and 197,805,339.95
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Solution
The fourth proportional to 431,267,076, 646,641,684.07 and 197,805,339.95 is: 296,589,248.88
Step by Step Solution
- Step 1: Write the proportion equation
431,267,076 : 646,641,684.07 = 197,805,339.95 : x - Step 2: Convert to fraction form
431,267,076/646,641,684.07 = 197,805,339.95/x - Step 3: Cross multiply
431,267,076x = 646,641,684.07 × 197,805,339.95 - Step 4: Simplify right side
431,267,076x = 127,909,178,139,579,120 - Step 5: Solve for x
x = 127,909,178,139,579,120/431,267,076 - Step 6: Final answer
x = 296,589,248.88
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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.