Home / 476,492,449.12-657,457,580.73-278,163,939.40

Finding the Fourth Proportional to 476,492,449.12, 657,457,580.73 and 278,163,939.40

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Solution

The fourth proportional to 476,492,449.12, 657,457,580.73 and 278,163,939.40 is: 383,806,691.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,492,449.12 : 657,457,580.73 = 278,163,939.40 : x
  2. Step 2: Convert to fraction form
    476,492,449.12/657,457,580.73 = 278,163,939.40/x
  3. Step 3: Cross multiply
    476,492,449.12x = 657,457,580.73 × 278,163,939.40
  4. Step 4: Simplify right side
    476,492,449.12x = 182,880,990,644,250,304
  5. Step 5: Solve for x
    x = 182,880,990,644,250,304/476,492,449.12
  6. Step 6: Final answer
    x = 383,806,691.97

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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.