Finding the Fourth Proportional to 122,526,867.80, 183,566,352.90 and 99,684,090.20
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Solution
The fourth proportional to 122,526,867.80, 183,566,352.90 and 99,684,090.20 is: 149,343,937.45
Step by Step Solution
- Step 1: Write the proportion equation
122,526,867.80 : 183,566,352.90 = 99,684,090.20 : x - Step 2: Convert to fraction form
122,526,867.80/183,566,352.90 = 99,684,090.20/x - Step 3: Cross multiply
122,526,867.80x = 183,566,352.90 × 99,684,090.20 - Step 4: Simplify right side
122,526,867.80x = 18,298,644,880,168,632 - Step 5: Solve for x
x = 18,298,644,880,168,632/122,526,867.80 - Step 6: Final answer
x = 149,343,937.45
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1.5x scale
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.