Home / 393,755,506.88-543,388,301.40-217,547,554.88

Finding the Fourth Proportional to 393,755,506.88, 543,388,301.40 and 217,547,554.88

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Solution

The fourth proportional to 393,755,506.88, 543,388,301.40 and 217,547,554.88 is: 300,218,776.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,755,506.88 : 543,388,301.40 = 217,547,554.88 : x
  2. Step 2: Convert to fraction form
    393,755,506.88/543,388,301.40 = 217,547,554.88/x
  3. Step 3: Cross multiply
    393,755,506.88x = 543,388,301.40 × 217,547,554.88
  4. Step 4: Simplify right side
    393,755,506.88x = 118,212,796,319,966,480
  5. Step 5: Solve for x
    x = 118,212,796,319,966,480/393,755,506.88
  6. Step 6: Final answer
    x = 300,218,776.00

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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.