Finding the Fourth Proportional to 109,113,615.80, 163,670,423.70 and 28,334,583.80
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Solution
The fourth proportional to 109,113,615.80, 163,670,423.70 and 28,334,583.80 is: 42,501,875.70
Step by Step Solution
- Step 1: Write the proportion equation
109,113,615.80 : 163,670,423.70 = 28,334,583.80 : x - Step 2: Convert to fraction form
109,113,615.80/163,670,423.70 = 28,334,583.80/x - Step 3: Cross multiply
109,113,615.80x = 163,670,423.70 × 28,334,583.80 - Step 4: Simplify right side
109,113,615.80x = 4,637,533,335,909,156 - Step 5: Solve for x
x = 4,637,533,335,909,156/109,113,615.80 - Step 6: Final answer
x = 42,501,875.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.