Finding the Fourth Proportional to 15,782,902.34, 21,778,070 and 9,584,725.70
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Solution
The fourth proportional to 15,782,902.34, 21,778,070 and 9,584,725.70 is: 13,225,503.32
Step by Step Solution
- Step 1: Write the proportion equation
15,782,902.34 : 21,778,070 = 9,584,725.70 : x - Step 2: Convert to fraction form
15,782,902.34/21,778,070 = 9,584,725.70/x - Step 3: Cross multiply
15,782,902.34x = 21,778,070 × 9,584,725.70 - Step 4: Simplify right side
15,782,902.34x = 208,736,827,225,398.97 - Step 5: Solve for x
x = 208,736,827,225,398.97/15,782,902.34 - Step 6: Final answer
x = 13,225,503.32
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1.5x scale
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.