Home / 12,947,721.60-19,406,030.40-5,370,787.20

Finding the Fourth Proportional to 12,947,721.60, 19,406,030.40 and 5,370,787.20

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Solution

The fourth proportional to 12,947,721.60, 19,406,030.40 and 5,370,787.20 is: 8,049,729.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947,721.60 : 19,406,030.40 = 5,370,787.20 : x
  2. Step 2: Convert to fraction form
    12,947,721.60/19,406,030.40 = 5,370,787.20/x
  3. Step 3: Cross multiply
    12,947,721.60x = 19,406,030.40 × 5,370,787.20
  4. Step 4: Simplify right side
    12,947,721.60x = 104,225,659,675,130.88
  5. Step 5: Solve for x
    x = 104,225,659,675,130.88/12,947,721.60
  6. Step 6: Final answer
    x = 8,049,729.74

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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.