Home / 8,736,187.20-13,112,056.80-5,137,454.40

Finding the Fourth Proportional to 8,736,187.20, 13,112,056.80 and 5,137,454.40

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Solution

The fourth proportional to 8,736,187.20, 13,112,056.80 and 5,137,454.40 is: 7,710,754.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736,187.20 : 13,112,056.80 = 5,137,454.40 : x
  2. Step 2: Convert to fraction form
    8,736,187.20/13,112,056.80 = 5,137,454.40/x
  3. Step 3: Cross multiply
    8,736,187.20x = 13,112,056.80 × 5,137,454.40
  4. Step 4: Simplify right side
    8,736,187.20x = 67,362,593,900,209.93
  5. Step 5: Solve for x
    x = 67,362,593,900,209.93/8,736,187.20
  6. Step 6: Final answer
    x = 7,710,754.40

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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.