Home / 303,061,820,895.51-418,227,920,941.52-172,857,270,703.05

Finding the Fourth Proportional to 303,061,820,895.51, 418,227,920,941.52 and 172,857,270,703.05

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Solution

The fourth proportional to 303,061,820,895.51, 418,227,920,941.52 and 172,857,270,703.05 is: 238,544,521,154.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,061,820,895.51 : 418,227,920,941.52 = 172,857,270,703.05 : x
  2. Step 2: Convert to fraction form
    303,061,820,895.51/418,227,920,941.52 = 172,857,270,703.05/x
  3. Step 3: Cross multiply
    303,061,820,895.51x = 418,227,920,941.52 × 172,857,270,703.05
  4. Step 4: Simplify right side
    303,061,820,895.51x = 72,293,736,945,762,114,207,744
  5. Step 5: Solve for x
    x = 72,293,736,945,762,114,207,744/303,061,820,895.51
  6. Step 6: Final answer
    x = 238,544,521,154.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.