Finding the Fourth Proportional to 442,867,897.80, 664,301,846.70 and 417,358,729.80
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Solution
The fourth proportional to 442,867,897.80, 664,301,846.70 and 417,358,729.80 is: 626,038,094.70
Step by Step Solution
- Step 1: Write the proportion equation
442,867,897.80 : 664,301,846.70 = 417,358,729.80 : x - Step 2: Convert to fraction form
442,867,897.80/664,301,846.70 = 417,358,729.80/x - Step 3: Cross multiply
442,867,897.80x = 664,301,846.70 × 417,358,729.80 - Step 4: Simplify right side
442,867,897.80x = 277,252,174,942,506,336 - Step 5: Solve for x
x = 277,252,174,942,506,336/442,867,897.80 - Step 6: Final answer
x = 626,038,094.70
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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.