Finding the Fourth Proportional to 93,145,903.80, 139,718,855.70 and 42,127,567.80
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Solution
The fourth proportional to 93,145,903.80, 139,718,855.70 and 42,127,567.80 is: 63,191,351.70
Step by Step Solution
- Step 1: Write the proportion equation
93,145,903.80 : 139,718,855.70 = 42,127,567.80 : x - Step 2: Convert to fraction form
93,145,903.80/139,718,855.70 = 42,127,567.80/x - Step 3: Cross multiply
93,145,903.80x = 139,718,855.70 × 42,127,567.80 - Step 4: Simplify right side
93,145,903.80x = 5,886,015,566,440,166 - Step 5: Solve for x
x = 5,886,015,566,440,166/93,145,903.80 - Step 6: Final answer
x = 63,191,351.70
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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.