Finding the Fourth Proportional to 1,559,775,807.30, 2,152,721,637.36 and 987,612,041.28
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Solution
The fourth proportional to 1,559,775,807.30, 2,152,721,637.36 and 987,612,041.28 is: 1,363,050,895.28
Step by Step Solution
- Step 1: Write the proportion equation
1,559,775,807.30 : 2,152,721,637.36 = 987,612,041.28 : x - Step 2: Convert to fraction form
1,559,775,807.30/2,152,721,637.36 = 987,612,041.28/x - Step 3: Cross multiply
1,559,775,807.30x = 2,152,721,637.36 × 987,612,041.28 - Step 4: Simplify right side
1,559,775,807.30x = 2,126,053,810,580,733,696 - Step 5: Solve for x
x = 2,126,053,810,580,733,696/1,559,775,807.30 - Step 6: Final answer
x = 1,363,050,895.28
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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.