Finding the Fourth Proportional to 861,875,530,685.96, 1,189,190,962,138.30 and 514,578,340,288.72
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Solution
The fourth proportional to 861,875,530,685.96, 1,189,190,962,138.30 and 514,578,340,288.72 is: 710,000,330,438.02
Step by Step Solution
- Step 1: Write the proportion equation
861,875,530,685.96 : 1,189,190,962,138.30 = 514,578,340,288.72 : x - Step 2: Convert to fraction form
861,875,530,685.96/1,189,190,962,138.30 = 514,578,340,288.72/x - Step 3: Cross multiply
861,875,530,685.96x = 1,189,190,962,138.30 × 514,578,340,288.72 - Step 4: Simplify right side
861,875,530,685.96x = 611,931,911,583,472,533,110,784 - Step 5: Solve for x
x = 611,931,911,583,472,533,110,784/861,875,530,685.96 - Step 6: Final answer
x = 710,000,330,438.02
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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.