Finding the Fourth Proportional to 1,872,807,746.20, 2,808,361,313.70 and 707,889,074.20
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Solution
The fourth proportional to 1,872,807,746.20, 2,808,361,313.70 and 707,889,074.20 is: 1,061,512,210.43
Step by Step Solution
- Step 1: Write the proportion equation
1,872,807,746.20 : 2,808,361,313.70 = 707,889,074.20 : x - Step 2: Convert to fraction form
1,872,807,746.20/2,808,361,313.70 = 707,889,074.20/x - Step 3: Cross multiply
1,872,807,746.20x = 2,808,361,313.70 × 707,889,074.20 - Step 4: Simplify right side
1,872,807,746.20x = 1,988,008,290,374,188,800 - Step 5: Solve for x
x = 1,988,008,290,374,188,800/1,872,807,746.20 - Step 6: Final answer
x = 1,061,512,210.43
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.