Home / 20,139,386.40-30,209,079.60-5,762,923.20

Finding the Fourth Proportional to 20,139,386.40, 30,209,079.60 and 5,762,923.20

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Solution

The fourth proportional to 20,139,386.40, 30,209,079.60 and 5,762,923.20 is: 8,644,384.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139,386.40 : 30,209,079.60 = 5,762,923.20 : x
  2. Step 2: Convert to fraction form
    20,139,386.40/30,209,079.60 = 5,762,923.20/x
  3. Step 3: Cross multiply
    20,139,386.40x = 30,209,079.60 × 5,762,923.20
  4. Step 4: Simplify right side
    20,139,386.40x = 174,092,605,677,486.72
  5. Step 5: Solve for x
    x = 174,092,605,677,486.72/20,139,386.40
  6. Step 6: Final answer
    x = 8,644,384.80

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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.