Finding the Fourth Proportional to 506,411,990.07, 698,877,998.33 and 283,391,746.53
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Solution
The fourth proportional to 506,411,990.07, 698,877,998.33 and 283,391,746.53 is: 391,097,091.78
Step by Step Solution
- Step 1: Write the proportion equation
506,411,990.07 : 698,877,998.33 = 283,391,746.53 : x - Step 2: Convert to fraction form
506,411,990.07/698,877,998.33 = 283,391,746.53/x - Step 3: Cross multiply
506,411,990.07x = 698,877,998.33 × 283,391,746.53 - Step 4: Simplify right side
506,411,990.07x = 198,056,256,558,129,120 - Step 5: Solve for x
x = 198,056,256,558,129,120/506,411,990.07 - Step 6: Final answer
x = 391,097,091.78
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.