Home / 12,143,901.46-16,758,128.98-6,637,231.38

Finding the Fourth Proportional to 12,143,901.46, 16,758,128.98 and 6,637,231.38

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Solution

The fourth proportional to 12,143,901.46, 16,758,128.98 and 6,637,231.38 is: 9,159,130.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143,901.46 : 16,758,128.98 = 6,637,231.38 : x
  2. Step 2: Convert to fraction form
    12,143,901.46/16,758,128.98 = 6,637,231.38/x
  3. Step 3: Cross multiply
    12,143,901.46x = 16,758,128.98 × 6,637,231.38
  4. Step 4: Simplify right side
    12,143,901.46x = 111,227,579,513,018.44
  5. Step 5: Solve for x
    x = 111,227,579,513,018.44/12,143,901.46
  6. Step 6: Final answer
    x = 9,159,130.60

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1.5x scale

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.