Finding the Fourth Proportional to 40,894,291.20, 61,391,203.20 and 20,689,132.80
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Solution
The fourth proportional to 40,894,291.20, 61,391,203.20 and 20,689,132.80 is: 31,058,876.89
Step by Step Solution
- Step 1: Write the proportion equation
40,894,291.20 : 61,391,203.20 = 20,689,132.80 : x - Step 2: Convert to fraction form
40,894,291.20/61,391,203.20 = 20,689,132.80/x - Step 3: Cross multiply
40,894,291.20x = 61,391,203.20 × 20,689,132.80 - Step 4: Simplify right side
40,894,291.20x = 1,270,130,755,756,585 - Step 5: Solve for x
x = 1,270,130,755,756,585/40,894,291.20 - Step 6: Final answer
x = 31,058,876.89
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.