Finding the Fourth Proportional to 2,153,892,312.71, 2,972,371,515.70 and 1,163,817,729.71
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Solution
The fourth proportional to 2,153,892,312.71, 2,972,371,515.70 and 1,163,817,729.71 is: 1,606,068,534.09
Step by Step Solution
- Step 1: Write the proportion equation
2,153,892,312.71 : 2,972,371,515.70 = 1,163,817,729.71 : x - Step 2: Convert to fraction form
2,153,892,312.71/2,972,371,515.70 = 1,163,817,729.71/x - Step 3: Cross multiply
2,153,892,312.71x = 2,972,371,515.70 × 1,163,817,729.71 - Step 4: Simplify right side
2,153,892,312.71x = 3,459,298,669,249,848,832 - Step 5: Solve for x
x = 3,459,298,669,249,848,832/2,153,892,312.71 - Step 6: Final answer
x = 1,606,068,534.09
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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.