Home / 30,072,523.90-45,127,761.54-12,800,697.20

Finding the Fourth Proportional to 30,072,523.90, 45,127,761.54 and 12,800,697.20

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Solution

The fourth proportional to 30,072,523.90, 45,127,761.54 and 12,800,697.20 is: 19,209,123.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,072,523.90 : 45,127,761.54 = 12,800,697.20 : x
  2. Step 2: Convert to fraction form
    30,072,523.90/45,127,761.54 = 12,800,697.20/x
  3. Step 3: Cross multiply
    30,072,523.90x = 45,127,761.54 × 12,800,697.20
  4. Step 4: Simplify right side
    30,072,523.90x = 577,666,810,787,345.62
  5. Step 5: Solve for x
    x = 577,666,810,787,345.62/30,072,523.90
  6. Step 6: Final answer
    x = 19,209,123.01

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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.