Home / 13,781,534.92-19,018,518.22-7,671,406.84

Finding the Fourth Proportional to 13,781,534.92, 19,018,518.22 and 7,671,406.84

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Solution

The fourth proportional to 13,781,534.92, 19,018,518.22 and 7,671,406.84 is: 10,586,541.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781,534.92 : 19,018,518.22 = 7,671,406.84 : x
  2. Step 2: Convert to fraction form
    13,781,534.92/19,018,518.22 = 7,671,406.84/x
  3. Step 3: Cross multiply
    13,781,534.92x = 19,018,518.22 × 7,671,406.84
  4. Step 4: Simplify right side
    13,781,534.92x = 145,898,790,759,572.62
  5. Step 5: Solve for x
    x = 145,898,790,759,572.62/13,781,534.92
  6. Step 6: Final answer
    x = 10,586,541.46

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Double scale
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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.