Home / 385,500,214.44-578,033,021.10-126,645,932.16

Finding the Fourth Proportional to 385,500,214.44, 578,033,021.10 and 126,645,932.16

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Solution

The fourth proportional to 385,500,214.44, 578,033,021.10 and 126,645,932.16 is: 189,897,509.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,500,214.44 : 578,033,021.10 = 126,645,932.16 : x
  2. Step 2: Convert to fraction form
    385,500,214.44/578,033,021.10 = 126,645,932.16/x
  3. Step 3: Cross multiply
    385,500,214.44x = 578,033,021.10 × 126,645,932.16
  4. Step 4: Simplify right side
    385,500,214.44x = 73,205,530,776,470,448
  5. Step 5: Solve for x
    x = 73,205,530,776,470,448/385,500,214.44
  6. Step 6: Final answer
    x = 189,897,509.87

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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.