Home / 20,870,041.20-31,289,509.80-10,779,903.60

Finding the Fourth Proportional to 20,870,041.20, 31,289,509.80 and 10,779,903.60

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Solution

The fourth proportional to 20,870,041.20, 31,289,509.80 and 10,779,903.60 is: 16,161,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,870,041.20 : 31,289,509.80 = 10,779,903.60 : x
  2. Step 2: Convert to fraction form
    20,870,041.20/31,289,509.80 = 10,779,903.60/x
  3. Step 3: Cross multiply
    20,870,041.20x = 31,289,509.80 × 10,779,903.60
  4. Step 4: Simplify right side
    20,870,041.20x = 337,297,899,335,255.25
  5. Step 5: Solve for x
    x = 337,297,899,335,255.25/20,870,041.20
  6. Step 6: Final answer
    x = 16,161,822.40

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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.