Finding the Fourth Proportional to 1,553,868,966.80, 2,330,430,202.20 and 897,400,384.40
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Solution
The fourth proportional to 1,553,868,966.80, 2,330,430,202.20 and 897,400,384.40 is: 1,345,885,016.02
Step by Step Solution
- Step 1: Write the proportion equation
1,553,868,966.80 : 2,330,430,202.20 = 897,400,384.40 : x - Step 2: Convert to fraction form
1,553,868,966.80/2,330,430,202.20 = 897,400,384.40/x - Step 3: Cross multiply
1,553,868,966.80x = 2,330,430,202.20 × 897,400,384.40 - Step 4: Simplify right side
1,553,868,966.80x = 2,091,328,959,271,649,536 - Step 5: Solve for x
x = 2,091,328,959,271,649,536/1,553,868,966.80 - Step 6: Final answer
x = 1,345,885,016.02
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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.