Home / 10,468,810.20-15,703,215.30-5,421,667.80

Finding the Fourth Proportional to 10,468,810.20, 15,703,215.30 and 5,421,667.80

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Solution

The fourth proportional to 10,468,810.20, 15,703,215.30 and 5,421,667.80 is: 8,132,501.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,468,810.20 : 15,703,215.30 = 5,421,667.80 : x
  2. Step 2: Convert to fraction form
    10,468,810.20/15,703,215.30 = 5,421,667.80/x
  3. Step 3: Cross multiply
    10,468,810.20x = 15,703,215.30 × 5,421,667.80
  4. Step 4: Simplify right side
    10,468,810.20x = 85,137,616,748,477.34
  5. Step 5: Solve for x
    x = 85,137,616,748,477.34/10,468,810.20
  6. Step 6: Final answer
    x = 8,132,501.70

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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.