Home / 28,232,721.80-42,354,987.60-9,065,416.40

Finding the Fourth Proportional to 28,232,721.80, 42,354,987.60 and 9,065,416.40

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Solution

The fourth proportional to 28,232,721.80, 42,354,987.60 and 9,065,416.40 is: 13,600,020.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,232,721.80 : 42,354,987.60 = 9,065,416.40 : x
  2. Step 2: Convert to fraction form
    28,232,721.80/42,354,987.60 = 9,065,416.40/x
  3. Step 3: Cross multiply
    28,232,721.80x = 42,354,987.60 × 9,065,416.40
  4. Step 4: Simplify right side
    28,232,721.80x = 383,965,599,210,836.69
  5. Step 5: Solve for x
    x = 383,965,599,210,836.69/28,232,721.80
  6. Step 6: Final answer
    x = 13,600,020.64

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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.