Finding the Fourth Proportional to 92,009,478.11, 126,950,432.96 and 56,236,864.91
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Solution
The fourth proportional to 92,009,478.11, 126,950,432.96 and 56,236,864.91 is: 77,593,031.67
Step by Step Solution
- Step 1: Write the proportion equation
92,009,478.11 : 126,950,432.96 = 56,236,864.91 : x - Step 2: Convert to fraction form
92,009,478.11/126,950,432.96 = 56,236,864.91/x - Step 3: Cross multiply
92,009,478.11x = 126,950,432.96 × 56,236,864.91 - Step 4: Simplify right side
92,009,478.11x = 7,139,294,348,143,372 - Step 5: Solve for x
x = 7,139,294,348,143,372/92,009,478.11 - Step 6: Final answer
x = 77,593,031.67
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.