Finding the Fourth Proportional to 47,779,079.40, 71,319,813.65 and 40,999,220.84
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Solution
The fourth proportional to 47,779,079.40, 71,319,813.65 and 40,999,220.84 is: 61,199,521.34
Step by Step Solution
- Step 1: Write the proportion equation
47,779,079.40 : 71,319,813.65 = 40,999,220.84 : x - Step 2: Convert to fraction form
47,779,079.40/71,319,813.65 = 40,999,220.84/x - Step 3: Cross multiply
47,779,079.40x = 71,319,813.65 × 40,999,220.84 - Step 4: Simplify right side
47,779,079.40x = 2,924,056,789,542,401 - Step 5: Solve for x
x = 2,924,056,789,542,401/47,779,079.40 - Step 6: Final answer
x = 61,199,521.34
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.