Home / 42,570,995.40-63,783,009.90-19,805,200.20

Finding the Fourth Proportional to 42,570,995.40, 63,783,009.90 and 19,805,200.20

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Solution

The fourth proportional to 42,570,995.40, 63,783,009.90 and 19,805,200.20 is: 29,673,613.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,570,995.40 : 63,783,009.90 = 19,805,200.20 : x
  2. Step 2: Convert to fraction form
    42,570,995.40/63,783,009.90 = 19,805,200.20/x
  3. Step 3: Cross multiply
    42,570,995.40x = 63,783,009.90 × 19,805,200.20
  4. Step 4: Simplify right side
    42,570,995.40x = 1,263,235,280,428,082
  5. Step 5: Solve for x
    x = 1,263,235,280,428,082/42,570,995.40
  6. Step 6: Final answer
    x = 29,673,613.89

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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.