Finding the Fourth Proportional to 42,521,432.28, 63,792,307.44 and 13,767,598.68
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Solution
The fourth proportional to 42,521,432.28, 63,792,307.44 and 13,767,598.68 is: 20,654,687.31
Step by Step Solution
- Step 1: Write the proportion equation
42,521,432.28 : 63,792,307.44 = 13,767,598.68 : x - Step 2: Convert to fraction form
42,521,432.28/63,792,307.44 = 13,767,598.68/x - Step 3: Cross multiply
42,521,432.28x = 63,792,307.44 × 13,767,598.68 - Step 4: Simplify right side
42,521,432.28x = 878,266,887,705,098.12 - Step 5: Solve for x
x = 878,266,887,705,098.12/42,521,432.28 - Step 6: Final answer
x = 20,654,687.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.