Finding the Fourth Proportional to 1,242,457,361,243, 1,862,038,514,928.20 and 638,058,150,417.99
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Solution
The fourth proportional to 1,242,457,361,243, 1,862,038,514,928.20 and 638,058,150,417.99 is: 956,241,145,896.18
Step by Step Solution
- Step 1: Write the proportion equation
1,242,457,361,243 : 1,862,038,514,928.20 = 638,058,150,417.99 : x - Step 2: Convert to fraction form
1,242,457,361,243/1,862,038,514,928.20 = 638,058,150,417.99/x - Step 3: Cross multiply
1,242,457,361,243x = 1,862,038,514,928.20 × 638,058,150,417.99 - Step 4: Simplify right side
1,242,457,361,243x = 1,188,088,850,842,148,128,423,936 - Step 5: Solve for x
x = 1,188,088,850,842,148,128,423,936/1,242,457,361,243 - Step 6: Final answer
x = 956,241,145,896.18
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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.