Home / 12,781,325.10-19,171,987.65-9,925,977.90

Finding the Fourth Proportional to 12,781,325.10, 19,171,987.65 and 9,925,977.90

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Solution

The fourth proportional to 12,781,325.10, 19,171,987.65 and 9,925,977.90 is: 14,888,966.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,325.10 : 19,171,987.65 = 9,925,977.90 : x
  2. Step 2: Convert to fraction form
    12,781,325.10/19,171,987.65 = 9,925,977.90/x
  3. Step 3: Cross multiply
    12,781,325.10x = 19,171,987.65 × 9,925,977.90
  4. Step 4: Simplify right side
    12,781,325.10x = 190,300,725,712,972.94
  5. Step 5: Solve for x
    x = 190,300,725,712,972.94/12,781,325.10
  6. Step 6: Final answer
    x = 14,888,966.85

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1.5x scale

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.