Home / 30,279,303.70-45,364,827.30-18,426,857.20

Finding the Fourth Proportional to 30,279,303.70, 45,364,827.30 and 18,426,857.20

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Solution

The fourth proportional to 30,279,303.70, 45,364,827.30 and 18,426,857.20 is: 27,607,345.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,279,303.70 : 45,364,827.30 = 18,426,857.20 : x
  2. Step 2: Convert to fraction form
    30,279,303.70/45,364,827.30 = 18,426,857.20/x
  3. Step 3: Cross multiply
    30,279,303.70x = 45,364,827.30 × 18,426,857.20
  4. Step 4: Simplify right side
    30,279,303.70x = 835,931,194,559,761.50
  5. Step 5: Solve for x
    x = 835,931,194,559,761.50/30,279,303.70
  6. Step 6: Final answer
    x = 27,607,345.36

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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.