Finding the Fourth Proportional to 578,584,913.23, 798,453,634.11 and 340,482,724.03
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Solution
The fourth proportional to 578,584,913.23, 798,453,634.11 and 340,482,724.03 is: 469,869,957.09
Step by Step Solution
- Step 1: Write the proportion equation
578,584,913.23 : 798,453,634.11 = 340,482,724.03 : x - Step 2: Convert to fraction form
578,584,913.23/798,453,634.11 = 340,482,724.03/x - Step 3: Cross multiply
578,584,913.23x = 798,453,634.11 × 340,482,724.03 - Step 4: Simplify right side
578,584,913.23x = 271,859,668,349,433,440 - Step 5: Solve for x
x = 271,859,668,349,433,440/578,584,913.23 - Step 6: Final answer
x = 469,869,957.09
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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.