Finding the Fourth Proportional to 93,312,086.70, 139,968,130.05 and 69,125,616.30
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Solution
The fourth proportional to 93,312,086.70, 139,968,130.05 and 69,125,616.30 is: 103,688,424.45
Step by Step Solution
- Step 1: Write the proportion equation
93,312,086.70 : 139,968,130.05 = 69,125,616.30 : x - Step 2: Convert to fraction form
93,312,086.70/139,968,130.05 = 69,125,616.30/x - Step 3: Cross multiply
93,312,086.70x = 139,968,130.05 × 69,125,616.30 - Step 4: Simplify right side
93,312,086.70x = 9,675,383,252,064,800 - Step 5: Solve for x
x = 9,675,383,252,064,800/93,312,086.70 - Step 6: Final answer
x = 103,688,424.45
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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.