Home / 12,781,905.23-17,639,464.45-7,559,390.24

Finding the Fourth Proportional to 12,781,905.23, 17,639,464.45 and 7,559,390.24

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Solution

The fourth proportional to 12,781,905.23, 17,639,464.45 and 7,559,390.24 is: 10,432,215.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,905.23 : 17,639,464.45 = 7,559,390.24 : x
  2. Step 2: Convert to fraction form
    12,781,905.23/17,639,464.45 = 7,559,390.24/x
  3. Step 3: Cross multiply
    12,781,905.23x = 17,639,464.45 × 7,559,390.24
  4. Step 4: Simplify right side
    12,781,905.23x = 133,343,595,402,156.97
  5. Step 5: Solve for x
    x = 133,343,595,402,156.97/12,781,905.23
  6. Step 6: Final answer
    x = 10,432,215.93

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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.