Finding the Fourth Proportional to 39,533,792.21, 54,518,305.85 and 30,828,788.63
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Solution
The fourth proportional to 39,533,792.21, 54,518,305.85 and 30,828,788.63 is: 42,513,840.28
Step by Step Solution
- Step 1: Write the proportion equation
39,533,792.21 : 54,518,305.85 = 30,828,788.63 : x - Step 2: Convert to fraction form
39,533,792.21/54,518,305.85 = 30,828,788.63/x - Step 3: Cross multiply
39,533,792.21x = 54,518,305.85 × 30,828,788.63 - Step 4: Simplify right side
39,533,792.21x = 1,680,733,327,582,070.50 - Step 5: Solve for x
x = 1,680,733,327,582,070.50/39,533,792.21 - Step 6: Final answer
x = 42,513,840.28
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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.