Finding the Fourth Proportional to 1,236,583,917.20, 1,854,875,875.80 and 624,363,885.20
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Solution
The fourth proportional to 1,236,583,917.20, 1,854,875,875.80 and 624,363,885.20 is: 936,545,827.80
Step by Step Solution
- Step 1: Write the proportion equation
1,236,583,917.20 : 1,854,875,875.80 = 624,363,885.20 : x - Step 2: Convert to fraction form
1,236,583,917.20/1,854,875,875.80 = 624,363,885.20/x - Step 3: Cross multiply
1,236,583,917.20x = 1,854,875,875.80 × 624,363,885.20 - Step 4: Simplify right side
1,236,583,917.20x = 1,158,117,508,378,240,768 - Step 5: Solve for x
x = 1,158,117,508,378,240,768/1,236,583,917.20 - Step 6: Final answer
x = 936,545,827.80
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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.