Finding the Fourth Proportional to 1,125,631,032.06, 1,553,370,971.40 and 623,872,210.08
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Solution
The fourth proportional to 1,125,631,032.06, 1,553,370,971.40 and 623,872,210.08 is: 860,943,731.47
Step by Step Solution
- Step 1: Write the proportion equation
1,125,631,032.06 : 1,553,370,971.40 = 623,872,210.08 : x - Step 2: Convert to fraction form
1,125,631,032.06/1,553,370,971.40 = 623,872,210.08/x - Step 3: Cross multiply
1,125,631,032.06x = 1,553,370,971.40 × 623,872,210.08 - Step 4: Simplify right side
1,125,631,032.06x = 969,104,981,001,434,624 - Step 5: Solve for x
x = 969,104,981,001,434,624/1,125,631,032.06 - Step 6: Final answer
x = 860,943,731.47
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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.