Home / 30,278,423.40-45,428,132.70-13,251,316.20

Finding the Fourth Proportional to 30,278,423.40, 45,428,132.70 and 13,251,316.20

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Solution

The fourth proportional to 30,278,423.40, 45,428,132.70 and 13,251,316.20 is: 19,881,568.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,278,423.40 : 45,428,132.70 = 13,251,316.20 : x
  2. Step 2: Convert to fraction form
    30,278,423.40/45,428,132.70 = 13,251,316.20/x
  3. Step 3: Cross multiply
    30,278,423.40x = 45,428,132.70 × 13,251,316.20
  4. Step 4: Simplify right side
    30,278,423.40x = 601,982,550,783,259.75
  5. Step 5: Solve for x
    x = 601,982,550,783,259.75/30,278,423.40
  6. Step 6: Final answer
    x = 19,881,568.56

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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.