Home / 28,431,033.80-42,646,550.70-10,238,036.90

Finding the Fourth Proportional to 28,431,033.80, 42,646,550.70 and 10,238,036.90

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Solution

The fourth proportional to 28,431,033.80, 42,646,550.70 and 10,238,036.90 is: 15,357,055.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,431,033.80 : 42,646,550.70 = 10,238,036.90 : x
  2. Step 2: Convert to fraction form
    28,431,033.80/42,646,550.70 = 10,238,036.90/x
  3. Step 3: Cross multiply
    28,431,033.80x = 42,646,550.70 × 10,238,036.90
  4. Step 4: Simplify right side
    28,431,033.80x = 436,616,959,724,320.88
  5. Step 5: Solve for x
    x = 436,616,959,724,320.88/28,431,033.80
  6. Step 6: Final answer
    x = 15,357,055.35

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Similar ratio
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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.