Finding the Fourth Proportional to 1,553,868,967.80, 2,330,430,203.70 and 897,400,385.40
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Solution
The fourth proportional to 1,553,868,967.80, 2,330,430,203.70 and 897,400,385.40 is: 1,345,885,017.52
Step by Step Solution
- Step 1: Write the proportion equation
1,553,868,967.80 : 2,330,430,203.70 = 897,400,385.40 : x - Step 2: Convert to fraction form
1,553,868,967.80/2,330,430,203.70 = 897,400,385.40/x - Step 3: Cross multiply
1,553,868,967.80x = 2,330,430,203.70 × 897,400,385.40 - Step 4: Simplify right side
1,553,868,967.80x = 2,091,328,962,948,180,224 - Step 5: Solve for x
x = 2,091,328,962,948,180,224/1,553,868,967.80 - Step 6: Final answer
x = 1,345,885,017.52
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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.