Finding the Fourth Proportional to 15,352,259.49, 21,177,237.12 and 9,919,751.49
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Solution
The fourth proportional to 15,352,259.49, 21,177,237.12 and 9,919,751.49 is: 13,683,518.68
Step by Step Solution
- Step 1: Write the proportion equation
15,352,259.49 : 21,177,237.12 = 9,919,751.49 : x - Step 2: Convert to fraction form
15,352,259.49/21,177,237.12 = 9,919,751.49/x - Step 3: Cross multiply
15,352,259.49x = 21,177,237.12 × 9,919,751.49 - Step 4: Simplify right side
15,352,259.49x = 210,072,929,475,203.31 - Step 5: Solve for x
x = 210,072,929,475,203.31/15,352,259.49 - Step 6: Final answer
x = 13,683,518.68
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1.5x scale
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.