Home / 485,196,019.94-728,121,501-190,054,530.98

Finding the Fourth Proportional to 485,196,019.94, 728,121,501 and 190,054,530.98

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Solution

The fourth proportional to 485,196,019.94, 728,121,501 and 190,054,530.98 is: 285,210,069.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,196,019.94 : 728,121,501 = 190,054,530.98 : x
  2. Step 2: Convert to fraction form
    485,196,019.94/728,121,501 = 190,054,530.98/x
  3. Step 3: Cross multiply
    485,196,019.94x = 728,121,501 × 190,054,530.98
  4. Step 4: Simplify right side
    485,196,019.94x = 138,382,790,369,008,592
  5. Step 5: Solve for x
    x = 138,382,790,369,008,592/485,196,019.94
  6. Step 6: Final answer
    x = 285,210,069.09

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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.