Home / 10,457,780.43-15,638,512.83-9,947,597.07

Finding the Fourth Proportional to 10,457,780.43, 15,638,512.83 and 9,947,597.07

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Solution

The fourth proportional to 10,457,780.43, 15,638,512.83 and 9,947,597.07 is: 14,875,587.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,457,780.43 : 15,638,512.83 = 9,947,597.07 : x
  2. Step 2: Convert to fraction form
    10,457,780.43/15,638,512.83 = 9,947,597.07/x
  3. Step 3: Cross multiply
    10,457,780.43x = 15,638,512.83 × 9,947,597.07
  4. Step 4: Simplify right side
    10,457,780.43x = 155,565,624,406,865.41
  5. Step 5: Solve for x
    x = 155,565,624,406,865.41/10,457,780.43
  6. Step 6: Final answer
    x = 14,875,587.17

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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.