Finding the Fourth Proportional to 1,358,421,856.04, 1,874,628,509.66 and 771,743,184.68
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Solution
The fourth proportional to 1,358,421,856.04, 1,874,628,509.66 and 771,743,184.68 is: 1,065,009,201.45
Step by Step Solution
- Step 1: Write the proportion equation
1,358,421,856.04 : 1,874,628,509.66 = 771,743,184.68 : x - Step 2: Convert to fraction form
1,358,421,856.04/1,874,628,509.66 = 771,743,184.68/x - Step 3: Cross multiply
1,358,421,856.04x = 1,874,628,509.66 × 771,743,184.68 - Step 4: Simplify right side
1,358,421,856.04x = 1,446,731,776,136,930,560 - Step 5: Solve for x
x = 1,446,731,776,136,930,560/1,358,421,856.04 - Step 6: Final answer
x = 1,065,009,201.45
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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.