Home / 30,289,301.20-45,449,698.20-13,251,696.40

Finding the Fourth Proportional to 30,289,301.20, 45,449,698.20 and 13,251,696.40

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Solution

The fourth proportional to 30,289,301.20, 45,449,698.20 and 13,251,696.40 is: 19,884,433.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,289,301.20 : 45,449,698.20 = 13,251,696.40 : x
  2. Step 2: Convert to fraction form
    30,289,301.20/45,449,698.20 = 13,251,696.40/x
  3. Step 3: Cross multiply
    30,289,301.20x = 45,449,698.20 × 13,251,696.40
  4. Step 4: Simplify right side
    30,289,301.20x = 602,285,602,018,026.50
  5. Step 5: Solve for x
    x = 602,285,602,018,026.50/30,289,301.20
  6. Step 6: Final answer
    x = 19,884,433.72

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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.