Finding the Fourth Proportional to 1,346,828,354.80, 2,020,242,532.20 and 887,285,417.20
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Solution
The fourth proportional to 1,346,828,354.80, 2,020,242,532.20 and 887,285,417.20 is: 1,330,928,125.80
Step by Step Solution
- Step 1: Write the proportion equation
1,346,828,354.80 : 2,020,242,532.20 = 887,285,417.20 : x - Step 2: Convert to fraction form
1,346,828,354.80/2,020,242,532.20 = 887,285,417.20/x - Step 3: Cross multiply
1,346,828,354.80x = 2,020,242,532.20 × 887,285,417.20 - Step 4: Simplify right side
1,346,828,354.80x = 1,792,531,738,028,261,632 - Step 5: Solve for x
x = 1,792,531,738,028,261,632/1,346,828,354.80 - Step 6: Final answer
x = 1,330,928,125.80
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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.