Finding the Fourth Proportional to 787,251,587.40, 1,180,420,520.98 and 372,724,928.60
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Solution
The fourth proportional to 787,251,587.40, 1,180,420,520.98 and 372,724,928.60 is: 558,871,092.09
Step by Step Solution
- Step 1: Write the proportion equation
787,251,587.40 : 1,180,420,520.98 = 372,724,928.60 : x - Step 2: Convert to fraction form
787,251,587.40/1,180,420,520.98 = 372,724,928.60/x - Step 3: Cross multiply
787,251,587.40x = 1,180,420,520.98 × 372,724,928.60 - Step 4: Simplify right side
787,251,587.40x = 439,972,154,400,245,312 - Step 5: Solve for x
x = 439,972,154,400,245,312/787,251,587.40 - Step 6: Final answer
x = 558,871,092.09
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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.