Home / 12,781,893.49-17,639,448.28-7,559,378.50

Finding the Fourth Proportional to 12,781,893.49, 17,639,448.28 and 7,559,378.50

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Solution

The fourth proportional to 12,781,893.49, 17,639,448.28 and 7,559,378.50 is: 10,432,199.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,893.49 : 17,639,448.28 = 7,559,378.50 : x
  2. Step 2: Convert to fraction form
    12,781,893.49/17,639,448.28 = 7,559,378.50/x
  3. Step 3: Cross multiply
    12,781,893.49x = 17,639,448.28 × 7,559,378.50
  4. Step 4: Simplify right side
    12,781,893.49x = 133,343,266,079,693.98
  5. Step 5: Solve for x
    x = 133,343,266,079,693.98/12,781,893.49
  6. Step 6: Final answer
    x = 10,432,199.75

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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.