Finding the Fourth Proportional to 1,248,538,862.80, 1,872,241,423.80 and 471,926,414.80
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Solution
The fourth proportional to 1,248,538,862.80, 1,872,241,423.80 and 471,926,414.80 is: 707,675,354.85
Step by Step Solution
- Step 1: Write the proportion equation
1,248,538,862.80 : 1,872,241,423.80 = 471,926,414.80 : x - Step 2: Convert to fraction form
1,248,538,862.80/1,872,241,423.80 = 471,926,414.80/x - Step 3: Cross multiply
1,248,538,862.80x = 1,872,241,423.80 × 471,926,414.80 - Step 4: Simplify right side
1,248,538,862.80x = 883,560,182,773,981,440 - Step 5: Solve for x
x = 883,560,182,773,981,440/1,248,538,862.80 - Step 6: Final answer
x = 707,675,354.85
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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.