Finding the Fourth Proportional to 63,609,926.20, 87,779,303.34 and 38,871,478.84
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Solution
The fourth proportional to 63,609,926.20, 87,779,303.34 and 38,871,478.84 is: 53,641,177.35
Step by Step Solution
- Step 1: Write the proportion equation
63,609,926.20 : 87,779,303.34 = 38,871,478.84 : x - Step 2: Convert to fraction form
63,609,926.20/87,779,303.34 = 38,871,478.84/x - Step 3: Cross multiply
63,609,926.20x = 87,779,303.34 × 38,871,478.84 - Step 4: Simplify right side
63,609,926.20x = 3,412,111,332,370,752 - Step 5: Solve for x
x = 3,412,111,332,370,752/63,609,926.20 - Step 6: Final answer
x = 53,641,177.35
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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.