Home / 15,378,836.24-21,221,946.24-8,502,864.80

Finding the Fourth Proportional to 15,378,836.24, 21,221,946.24 and 8,502,864.80

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Solution

The fourth proportional to 15,378,836.24, 21,221,946.24 and 8,502,864.80 is: 11,733,484.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,378,836.24 : 21,221,946.24 = 8,502,864.80 : x
  2. Step 2: Convert to fraction form
    15,378,836.24/21,221,946.24 = 8,502,864.80/x
  3. Step 3: Cross multiply
    15,378,836.24x = 21,221,946.24 × 8,502,864.80
  4. Step 4: Simplify right side
    15,378,836.24x = 180,447,339,671,588.34
  5. Step 5: Solve for x
    x = 180,447,339,671,588.34/15,378,836.24
  6. Step 6: Final answer
    x = 11,733,484.70

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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.