Finding the Fourth Proportional to 758,238,041.80, 1,137,357,062.70 and 628,991,590.60
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Solution
The fourth proportional to 758,238,041.80, 1,137,357,062.70 and 628,991,590.60 is: 943,487,385.90
Step by Step Solution
- Step 1: Write the proportion equation
758,238,041.80 : 1,137,357,062.70 = 628,991,590.60 : x - Step 2: Convert to fraction form
758,238,041.80/1,137,357,062.70 = 628,991,590.60/x - Step 3: Cross multiply
758,238,041.80x = 1,137,357,062.70 × 628,991,590.60 - Step 4: Simplify right side
758,238,041.80x = 715,388,027,947,816,960 - Step 5: Solve for x
x = 715,388,027,947,816,960/758,238,041.80 - Step 6: Final answer
x = 943,487,385.90
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Similar ratio
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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.