Finding the Fourth Proportional to 2,872,663,486.74, 4,308,842,001.74 and 774,106,201.57
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Solution
The fourth proportional to 2,872,663,486.74, 4,308,842,001.74 and 774,106,201.57 is: 1,161,118,011.40
Step by Step Solution
- Step 1: Write the proportion equation
2,872,663,486.74 : 4,308,842,001.74 = 774,106,201.57 : x - Step 2: Convert to fraction form
2,872,663,486.74/4,308,842,001.74 = 774,106,201.57/x - Step 3: Cross multiply
2,872,663,486.74x = 4,308,842,001.74 × 774,106,201.57 - Step 4: Simplify right side
2,872,663,486.74x = 3,335,501,315,132,226,560 - Step 5: Solve for x
x = 3,335,501,315,132,226,560/2,872,663,486.74 - Step 6: Final answer
x = 1,161,118,011.40
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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.