Finding the Fourth Proportional to 93,312,138.30, 139,968,207.45 and 85,375,952.70
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Solution
The fourth proportional to 93,312,138.30, 139,968,207.45 and 85,375,952.70 is: 128,063,929.05
Step by Step Solution
- Step 1: Write the proportion equation
93,312,138.30 : 139,968,207.45 = 85,375,952.70 : x - Step 2: Convert to fraction form
93,312,138.30/139,968,207.45 = 85,375,952.70/x - Step 3: Cross multiply
93,312,138.30x = 139,968,207.45 × 85,375,952.70 - Step 4: Simplify right side
93,312,138.30x = 11,949,919,058,754,988 - Step 5: Solve for x
x = 11,949,919,058,754,988/93,312,138.30 - Step 6: Final answer
x = 128,063,929.05
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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.