Home / 7,210,005.90-10,815,008.85-3,430,869.90

Finding the Fourth Proportional to 7,210,005.90, 10,815,008.85 and 3,430,869.90

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Solution

The fourth proportional to 7,210,005.90, 10,815,008.85 and 3,430,869.90 is: 5,146,304.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210,005.90 : 10,815,008.85 = 3,430,869.90 : x
  2. Step 2: Convert to fraction form
    7,210,005.90/10,815,008.85 = 3,430,869.90/x
  3. Step 3: Cross multiply
    7,210,005.90x = 10,815,008.85 × 3,430,869.90
  4. Step 4: Simplify right side
    7,210,005.90x = 37,104,888,331,698.61
  5. Step 5: Solve for x
    x = 37,104,888,331,698.61/7,210,005.90
  6. Step 6: Final answer
    x = 5,146,304.85

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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.