Finding the Fourth Proportional to 266,928,712.34, 368,365,425.74 and 153,895,968.09
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Solution
The fourth proportional to 266,928,712.34, 368,365,425.74 and 153,895,968.09 is: 212,378,628.39
Step by Step Solution
- Step 1: Write the proportion equation
266,928,712.34 : 368,365,425.74 = 153,895,968.09 : x - Step 2: Convert to fraction form
266,928,712.34/368,365,425.74 = 153,895,968.09/x - Step 3: Cross multiply
266,928,712.34x = 368,365,425.74 × 153,895,968.09 - Step 4: Simplify right side
266,928,712.34x = 56,689,953,804,949,936 - Step 5: Solve for x
x = 56,689,953,804,949,936/266,928,712.34 - Step 6: Final answer
x = 212,378,628.39
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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.