Finding the Fourth Proportional to 438,169,657.18, 657,377,360.70 and 176,038,280.20
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Solution
The fourth proportional to 438,169,657.18, 657,377,360.70 and 176,038,280.20 is: 264,106,786.32
Step by Step Solution
- Step 1: Write the proportion equation
438,169,657.18 : 657,377,360.70 = 176,038,280.20 : x - Step 2: Convert to fraction form
438,169,657.18/657,377,360.70 = 176,038,280.20/x - Step 3: Cross multiply
438,169,657.18x = 657,377,360.70 × 176,038,280.20 - Step 4: Simplify right side
438,169,657.18x = 115,723,580,020,043,072 - Step 5: Solve for x
x = 115,723,580,020,043,072/438,169,657.18 - Step 6: Final answer
x = 264,106,786.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.