Finding the Fourth Proportional to 905,418,019.70, 1,358,127,029.55 and 899,678,456.90
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Solution
The fourth proportional to 905,418,019.70, 1,358,127,029.55 and 899,678,456.90 is: 1,349,517,685.35
Step by Step Solution
- Step 1: Write the proportion equation
905,418,019.70 : 1,358,127,029.55 = 899,678,456.90 : x - Step 2: Convert to fraction form
905,418,019.70/1,358,127,029.55 = 899,678,456.90/x - Step 3: Cross multiply
905,418,019.70x = 1,358,127,029.55 × 899,678,456.90 - Step 4: Simplify right side
905,418,019.70x = 1,221,877,630,219,724,544 - Step 5: Solve for x
x = 1,221,877,630,219,724,544/905,418,019.70 - Step 6: Final answer
x = 1,349,517,685.35
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Similar ratio
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1.5x scale
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.