Finding the Fourth Proportional to 1,570,570,860.02, 2,167,484,755.89 and 865,721,251.70
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Solution
The fourth proportional to 1,570,570,860.02, 2,167,484,755.89 and 865,721,251.70 is: 1,194,748,778.09
Step by Step Solution
- Step 1: Write the proportion equation
1,570,570,860.02 : 2,167,484,755.89 = 865,721,251.70 : x - Step 2: Convert to fraction form
1,570,570,860.02/2,167,484,755.89 = 865,721,251.70/x - Step 3: Cross multiply
1,570,570,860.02x = 2,167,484,755.89 × 865,721,251.70 - Step 4: Simplify right side
1,570,570,860.02x = 1,876,437,615,909,759,744 - Step 5: Solve for x
x = 1,876,437,615,909,759,744/1,570,570,860.02 - Step 6: Final answer
x = 1,194,748,778.09
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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.