Finding the Fourth Proportional to 101,216,894.70, 139,679,504.70 and 56,562,867.09
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Solution
The fourth proportional to 101,216,894.70, 139,679,504.70 and 56,562,867.09 is: 78,056,862.77
Step by Step Solution
- Step 1: Write the proportion equation
101,216,894.70 : 139,679,504.70 = 56,562,867.09 : x - Step 2: Convert to fraction form
101,216,894.70/139,679,504.70 = 56,562,867.09/x - Step 3: Cross multiply
101,216,894.70x = 139,679,504.70 × 56,562,867.09 - Step 4: Simplify right side
101,216,894.70x = 7,900,673,259,543,130 - Step 5: Solve for x
x = 7,900,673,259,543,130/101,216,894.70 - Step 6: Final answer
x = 78,056,862.77
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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.