Home / 10,455,313.04-15,671,214.80-5,323,337.76

Finding the Fourth Proportional to 10,455,313.04, 15,671,214.80 and 5,323,337.76

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Solution

The fourth proportional to 10,455,313.04, 15,671,214.80 and 5,323,337.76 is: 7,979,021.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455,313.04 : 15,671,214.80 = 5,323,337.76 : x
  2. Step 2: Convert to fraction form
    10,455,313.04/15,671,214.80 = 5,323,337.76/x
  3. Step 3: Cross multiply
    10,455,313.04x = 15,671,214.80 × 5,323,337.76
  4. Step 4: Simplify right side
    10,455,313.04x = 83,423,169,489,910.84
  5. Step 5: Solve for x
    x = 83,423,169,489,910.84/10,455,313.04
  6. Step 6: Final answer
    x = 7,979,021.69

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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.