Finding the Fourth Proportional to 99,076,953.80, 148,615,430.70 and 73,248,921.20
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Solution
The fourth proportional to 99,076,953.80, 148,615,430.70 and 73,248,921.20 is: 109,873,381.80
Step by Step Solution
- Step 1: Write the proportion equation
99,076,953.80 : 148,615,430.70 = 73,248,921.20 : x - Step 2: Convert to fraction form
99,076,953.80/148,615,430.70 = 73,248,921.20/x - Step 3: Cross multiply
99,076,953.80x = 148,615,430.70 × 73,248,921.20 - Step 4: Simplify right side
99,076,953.80x = 10,885,919,972,448,360 - Step 5: Solve for x
x = 10,885,919,972,448,360/99,076,953.80 - Step 6: Final answer
x = 109,873,381.80
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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.