Home / 30,279,905.40-45,430,355.70-13,252,798.20

Finding the Fourth Proportional to 30,279,905.40, 45,430,355.70 and 13,252,798.20

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Solution

The fourth proportional to 30,279,905.40, 45,430,355.70 and 13,252,798.20 is: 19,883,791.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,279,905.40 : 45,430,355.70 = 13,252,798.20 : x
  2. Step 2: Convert to fraction form
    30,279,905.40/45,430,355.70 = 13,252,798.20/x
  3. Step 3: Cross multiply
    30,279,905.40x = 45,430,355.70 × 13,252,798.20
  4. Step 4: Simplify right side
    30,279,905.40x = 602,079,336,246,319.75
  5. Step 5: Solve for x
    x = 602,079,336,246,319.75/30,279,905.40
  6. Step 6: Final answer
    x = 19,883,791.85

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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.