Finding the Fourth Proportional to 314,930,430.80, 472,395,646.20 and 303,451,305.20
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Solution
The fourth proportional to 314,930,430.80, 472,395,646.20 and 303,451,305.20 is: 455,176,957.80
Step by Step Solution
- Step 1: Write the proportion equation
314,930,430.80 : 472,395,646.20 = 303,451,305.20 : x - Step 2: Convert to fraction form
314,930,430.80/472,395,646.20 = 303,451,305.20/x - Step 3: Cross multiply
314,930,430.80x = 472,395,646.20 × 303,451,305.20 - Step 4: Simplify right side
314,930,430.80x = 143,349,075,410,187,408 - Step 5: Solve for x
x = 143,349,075,410,187,408/314,930,430.80 - Step 6: Final answer
x = 455,176,957.80
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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.