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Finding the Fourth Proportional to 404,937,253.76, 558,810,430.08 and 219,293,962.88

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Solution

The fourth proportional to 404,937,253.76, 558,810,430.08 and 219,293,962.88 is: 302,624,054.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,937,253.76 : 558,810,430.08 = 219,293,962.88 : x
  2. Step 2: Convert to fraction form
    404,937,253.76/558,810,430.08 = 219,293,962.88/x
  3. Step 3: Cross multiply
    404,937,253.76x = 558,810,430.08 × 219,293,962.88
  4. Step 4: Simplify right side
    404,937,253.76x = 122,543,753,710,920,368
  5. Step 5: Solve for x
    x = 122,543,753,710,920,368/404,937,253.76
  6. Step 6: Final answer
    x = 302,624,054.90

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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.