Finding the Fourth Proportional to 93,312,268.70, 139,968,403.05 and 72,904,934.30
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Solution
The fourth proportional to 93,312,268.70, 139,968,403.05 and 72,904,934.30 is: 109,357,401.45
Step by Step Solution
- Step 1: Write the proportion equation
93,312,268.70 : 139,968,403.05 = 72,904,934.30 : x - Step 2: Convert to fraction form
93,312,268.70/139,968,403.05 = 72,904,934.30/x - Step 3: Cross multiply
93,312,268.70x = 139,968,403.05 × 72,904,934.30 - Step 4: Simplify right side
93,312,268.70x = 10,204,387,228,436,170 - Step 5: Solve for x
x = 10,204,387,228,436,170/93,312,268.70 - Step 6: Final answer
x = 109,357,401.45
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1.5x scale
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.