Finding the Fourth Proportional to 92,723,430.40, 139,176,683.52 and 69,613,987.84
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Solution
The fourth proportional to 92,723,430.40, 139,176,683.52 and 69,613,987.84 is: 104,489,705.70
Step by Step Solution
- Step 1: Write the proportion equation
92,723,430.40 : 139,176,683.52 = 69,613,987.84 : x - Step 2: Convert to fraction form
92,723,430.40/139,176,683.52 = 69,613,987.84/x - Step 3: Cross multiply
92,723,430.40x = 139,176,683.52 × 69,613,987.84 - Step 4: Simplify right side
92,723,430.40x = 9,688,643,954,172,810 - Step 5: Solve for x
x = 9,688,643,954,172,810/92,723,430.40 - Step 6: Final answer
x = 104,489,705.70
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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.