Finding the Fourth Proportional to 1,152,605,844.68, 1,590,596,597.84 and 623,969,830.76
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Solution
The fourth proportional to 1,152,605,844.68, 1,590,596,597.84 and 623,969,830.76 is: 861,078,654.55
Step by Step Solution
- Step 1: Write the proportion equation
1,152,605,844.68 : 1,590,596,597.84 = 623,969,830.76 : x - Step 2: Convert to fraction form
1,152,605,844.68/1,590,596,597.84 = 623,969,830.76/x - Step 3: Cross multiply
1,152,605,844.68x = 1,590,596,597.84 × 623,969,830.76 - Step 4: Simplify right side
1,152,605,844.68x = 992,484,289,961,656,576 - Step 5: Solve for x
x = 992,484,289,961,656,576/1,152,605,844.68 - Step 6: Final answer
x = 861,078,654.55
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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.