Finding the Fourth Proportional to 26,128,941.60, 39,194,937.84 and 7,933,730.40
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Solution
The fourth proportional to 26,128,941.60, 39,194,937.84 and 7,933,730.40 is: 11,901,058.78
Step by Step Solution
- Step 1: Write the proportion equation
26,128,941.60 : 39,194,937.84 = 7,933,730.40 : x - Step 2: Convert to fraction form
26,128,941.60/39,194,937.84 = 7,933,730.40/x - Step 3: Cross multiply
26,128,941.60x = 39,194,937.84 × 7,933,730.40 - Step 4: Simplify right side
26,128,941.60x = 310,962,069,867,318.38 - Step 5: Solve for x
x = 310,962,069,867,318.38/26,128,941.60 - Step 6: Final answer
x = 11,901,058.78
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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.