Finding the Fourth Proportional to 1,130,698,804.04, 1,560,341,974.12 and 628,896,793.48
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Solution
The fourth proportional to 1,130,698,804.04, 1,560,341,974.12 and 628,896,793.48 is: 867,865,129.73
Step by Step Solution
- Step 1: Write the proportion equation
1,130,698,804.04 : 1,560,341,974.12 = 628,896,793.48 : x - Step 2: Convert to fraction form
1,130,698,804.04/1,560,341,974.12 = 628,896,793.48/x - Step 3: Cross multiply
1,130,698,804.04x = 1,560,341,974.12 × 628,896,793.48 - Step 4: Simplify right side
1,130,698,804.04x = 981,294,064,256,321,152 - Step 5: Solve for x
x = 981,294,064,256,321,152/1,130,698,804.04 - Step 6: Final answer
x = 867,865,129.73
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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.