Finding the Fourth Proportional to 1,089,911,251.80, 1,634,866,877.70 and 896,201,007.30
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Solution
The fourth proportional to 1,089,911,251.80, 1,634,866,877.70 and 896,201,007.30 is: 1,344,301,510.95
Step by Step Solution
- Step 1: Write the proportion equation
1,089,911,251.80 : 1,634,866,877.70 = 896,201,007.30 : x - Step 2: Convert to fraction form
1,089,911,251.80/1,634,866,877.70 = 896,201,007.30/x - Step 3: Cross multiply
1,089,911,251.80x = 1,634,866,877.70 × 896,201,007.30 - Step 4: Simplify right side
1,089,911,251.80x = 1,465,169,342,596,145,920 - Step 5: Solve for x
x = 1,465,169,342,596,145,920/1,089,911,251.80 - Step 6: Final answer
x = 1,344,301,510.95
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1.5x scale
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.