Finding the Fourth Proportional to 13,331,291.70, 19,996,937.55 and 6,953,999.70
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Solution
The fourth proportional to 13,331,291.70, 19,996,937.55 and 6,953,999.70 is: 10,430,999.55
Step by Step Solution
- Step 1: Write the proportion equation
13,331,291.70 : 19,996,937.55 = 6,953,999.70 : x - Step 2: Convert to fraction form
13,331,291.70/19,996,937.55 = 6,953,999.70/x - Step 3: Cross multiply
13,331,291.70x = 19,996,937.55 × 6,953,999.70 - Step 4: Simplify right side
13,331,291.70x = 139,058,697,723,618.75 - Step 5: Solve for x
x = 139,058,697,723,618.75/13,331,291.70 - Step 6: Final answer
x = 10,430,999.55
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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.