Home / 13,856,671.79-19,121,434.31-7,661,346.39

Finding the Fourth Proportional to 13,856,671.79, 19,121,434.31 and 7,661,346.39

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Solution

The fourth proportional to 13,856,671.79, 19,121,434.31 and 7,661,346.39 is: 10,572,230.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,856,671.79 : 19,121,434.31 = 7,661,346.39 : x
  2. Step 2: Convert to fraction form
    13,856,671.79/19,121,434.31 = 7,661,346.39/x
  3. Step 3: Cross multiply
    13,856,671.79x = 19,121,434.31 × 7,661,346.39
  4. Step 4: Simplify right side
    13,856,671.79x = 146,495,931,698,598.94
  5. Step 5: Solve for x
    x = 146,495,931,698,598.94/13,856,671.79
  6. Step 6: Final answer
    x = 10,572,230.76

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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.