Finding the Fourth Proportional to 260,312,166.08, 390,262,799.80 and 129,063,947.44
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Solution
The fourth proportional to 260,312,166.08, 390,262,799.80 and 129,063,947.44 is: 193,494,058.46
Step by Step Solution
- Step 1: Write the proportion equation
260,312,166.08 : 390,262,799.80 = 129,063,947.44 : x - Step 2: Convert to fraction form
260,312,166.08/390,262,799.80 = 129,063,947.44/x - Step 3: Cross multiply
260,312,166.08x = 390,262,799.80 × 129,063,947.44 - Step 4: Simplify right side
260,312,166.08x = 50,368,857,481,174,440 - Step 5: Solve for x
x = 50,368,857,481,174,440/260,312,166.08 - Step 6: Final answer
x = 193,494,058.46
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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.