Home / 345,222,285.21-518,037,730.47-127,025,855.15

Finding the Fourth Proportional to 345,222,285.21, 518,037,730.47 and 127,025,855.15

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Solution

The fourth proportional to 345,222,285.21, 518,037,730.47 and 127,025,855.15 is: 190,613,956.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,222,285.21 : 518,037,730.47 = 127,025,855.15 : x
  2. Step 2: Convert to fraction form
    345,222,285.21/518,037,730.47 = 127,025,855.15/x
  3. Step 3: Cross multiply
    345,222,285.21x = 518,037,730.47 × 127,025,855.15
  4. Step 4: Simplify right side
    345,222,285.21x = 65,804,185,710,326,776
  5. Step 5: Solve for x
    x = 65,804,185,710,326,776/345,222,285.21
  6. Step 6: Final answer
    x = 190,613,956.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.