Finding the Fourth Proportional to 3,886,391,900,726.80, 5,363,389,411,921 and 2,152,201,457,058.80
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Solution
The fourth proportional to 3,886,391,900,726.80, 5,363,389,411,921 and 2,152,201,457,058.80 is: 2,970,131,371,710.46
Step by Step Solution
- Step 1: Write the proportion equation
3,886,391,900,726.80 : 5,363,389,411,921 = 2,152,201,457,058.80 : x - Step 2: Convert to fraction form
3,886,391,900,726.80/5,363,389,411,921 = 2,152,201,457,058.80/x - Step 3: Cross multiply
3,886,391,900,726.80x = 5,363,389,411,921 × 2,152,201,457,058.80 - Step 4: Simplify right side
3,886,391,900,726.80x = 11,543,094,507,110,116,850,925,568 - Step 5: Solve for x
x = 11,543,094,507,110,116,850,925,568/3,886,391,900,726.80 - Step 6: Final answer
x = 2,970,131,371,710.46
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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.