Finding the Fourth Proportional to 1,770,203,863.47, 2,442,817,289.91 and 977,232,815.70
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Solution
The fourth proportional to 1,770,203,863.47, 2,442,817,289.91 and 977,232,815.70 is: 1,348,545,931.75
Step by Step Solution
- Step 1: Write the proportion equation
1,770,203,863.47 : 2,442,817,289.91 = 977,232,815.70 : x - Step 2: Convert to fraction form
1,770,203,863.47/2,442,817,289.91 = 977,232,815.70/x - Step 3: Cross multiply
1,770,203,863.47x = 2,442,817,289.91 × 977,232,815.70 - Step 4: Simplify right side
1,770,203,863.47x = 2,387,201,218,459,392,512 - Step 5: Solve for x
x = 2,387,201,218,459,392,512/1,770,203,863.47 - Step 6: Final answer
x = 1,348,545,931.75
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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.