Home / 30,319,979.70-45,479,969.55-11,146,769.40

Finding the Fourth Proportional to 30,319,979.70, 45,479,969.55 and 11,146,769.40

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Solution

The fourth proportional to 30,319,979.70, 45,479,969.55 and 11,146,769.40 is: 16,720,154.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,319,979.70 : 45,479,969.55 = 11,146,769.40 : x
  2. Step 2: Convert to fraction form
    30,319,979.70/45,479,969.55 = 11,146,769.40/x
  3. Step 3: Cross multiply
    30,319,979.70x = 45,479,969.55 × 11,146,769.40
  4. Step 4: Simplify right side
    30,319,979.70x = 506,954,732,892,871.75
  5. Step 5: Solve for x
    x = 506,954,732,892,871.75/30,319,979.70
  6. Step 6: Final answer
    x = 16,720,154.10

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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.