Finding the Fourth Proportional to 1,317,933,888.06, 1,818,776,543.75 and 723,213,169.36
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Solution
The fourth proportional to 1,317,933,888.06, 1,818,776,543.75 and 723,213,169.36 is: 998,049,416.95
Step by Step Solution
- Step 1: Write the proportion equation
1,317,933,888.06 : 1,818,776,543.75 = 723,213,169.36 : x - Step 2: Convert to fraction form
1,317,933,888.06/1,818,776,543.75 = 723,213,169.36/x - Step 3: Cross multiply
1,317,933,888.06x = 1,818,776,543.75 × 723,213,169.36 - Step 4: Simplify right side
1,317,933,888.06x = 1,315,363,148,563,064,320 - Step 5: Solve for x
x = 1,315,363,148,563,064,320/1,317,933,888.06 - Step 6: Final answer
x = 998,049,416.95
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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.