Finding the Fourth Proportional to 388,207,210.36, 535,795,147.56 and 229,430,850
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Solution
The fourth proportional to 388,207,210.36, 535,795,147.56 and 229,430,850 is: 316,655,468.65
Step by Step Solution
- Step 1: Write the proportion equation
388,207,210.36 : 535,795,147.56 = 229,430,850 : x - Step 2: Convert to fraction form
388,207,210.36/535,795,147.56 = 229,430,850/x - Step 3: Cross multiply
388,207,210.36x = 535,795,147.56 × 229,430,850 - Step 4: Simplify right side
388,207,210.36x = 122,927,936,130,566,224 - Step 5: Solve for x
x = 122,927,936,130,566,224/388,207,210.36 - Step 6: Final answer
x = 316,655,468.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.