Finding the Fourth Proportional to 343,357,904.80, 515,128,095.60 and 149,186,000.80
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Solution
The fourth proportional to 343,357,904.80, 515,128,095.60 and 149,186,000.80 is: 223,818,643.49
Step by Step Solution
- Step 1: Write the proportion equation
343,357,904.80 : 515,128,095.60 = 149,186,000.80 : x - Step 2: Convert to fraction form
343,357,904.80/515,128,095.60 = 149,186,000.80/x - Step 3: Cross multiply
343,357,904.80x = 515,128,095.60 × 149,186,000.80 - Step 4: Simplify right side
343,357,904.80x = 76,849,900,482,284,080 - Step 5: Solve for x
x = 76,849,900,482,284,080/343,357,904.80 - Step 6: Final answer
x = 223,818,643.49
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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.