Home / 9,158,903.21-12,639,698.72-5,487,740.96

Finding the Fourth Proportional to 9,158,903.21, 12,639,698.72 and 5,487,740.96

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Solution

The fourth proportional to 9,158,903.21, 12,639,698.72 and 5,487,740.96 is: 7,573,329.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,158,903.21 : 12,639,698.72 = 5,487,740.96 : x
  2. Step 2: Convert to fraction form
    9,158,903.21/12,639,698.72 = 5,487,740.96/x
  3. Step 3: Cross multiply
    9,158,903.21x = 12,639,698.72 × 5,487,740.96
  4. Step 4: Simplify right side
    9,158,903.21x = 69,363,392,387,803.58
  5. Step 5: Solve for x
    x = 69,363,392,387,803.58/9,158,903.21
  6. Step 6: Final answer
    x = 7,573,329.56

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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.