Finding the Fourth Proportional to 671,423,340,139.48, 1,006,848,320,053.40 and 388,637,376,108.76
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Solution
The fourth proportional to 671,423,340,139.48, 1,006,848,320,053.40 and 388,637,376,108.76 is: 582,790,120,408.65
Step by Step Solution
- Step 1: Write the proportion equation
671,423,340,139.48 : 1,006,848,320,053.40 = 388,637,376,108.76 : x - Step 2: Convert to fraction form
671,423,340,139.48/1,006,848,320,053.40 = 388,637,376,108.76/x - Step 3: Cross multiply
671,423,340,139.48x = 1,006,848,320,053.40 × 388,637,376,108.76 - Step 4: Simplify right side
671,423,340,139.48x = 391,298,889,245,066,369,433,600 - Step 5: Solve for x
x = 391,298,889,245,066,369,433,600/671,423,340,139.48 - Step 6: Final answer
x = 582,790,120,408.65
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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.