Home / 30,456,482.40-42,039,357.12-19,591,466.40

Finding the Fourth Proportional to 30,456,482.40, 42,039,357.12 and 19,591,466.40

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Solution

The fourth proportional to 30,456,482.40, 42,039,357.12 and 19,591,466.40 is: 27,042,277.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,456,482.40 : 42,039,357.12 = 19,591,466.40 : x
  2. Step 2: Convert to fraction form
    30,456,482.40/42,039,357.12 = 19,591,466.40/x
  3. Step 3: Cross multiply
    30,456,482.40x = 42,039,357.12 × 19,591,466.40
  4. Step 4: Simplify right side
    30,456,482.40x = 823,612,652,494,080.62
  5. Step 5: Solve for x
    x = 823,612,652,494,080.62/30,456,482.40
  6. Step 6: Final answer
    x = 27,042,277.62

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1.5x scale

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.