Home / 20,785,646.80-31,161,881.40-8,808,533.20

Finding the Fourth Proportional to 20,785,646.80, 31,161,881.40 and 8,808,533.20

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Solution

The fourth proportional to 20,785,646.80, 31,161,881.40 and 8,808,533.20 is: 13,205,769.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785,646.80 : 31,161,881.40 = 8,808,533.20 : x
  2. Step 2: Convert to fraction form
    20,785,646.80/31,161,881.40 = 8,808,533.20/x
  3. Step 3: Cross multiply
    20,785,646.80x = 31,161,881.40 × 8,808,533.20
  4. Step 4: Simplify right side
    20,785,646.80x = 274,490,466,886,362.44
  5. Step 5: Solve for x
    x = 274,490,466,886,362.44/20,785,646.80
  6. Step 6: Final answer
    x = 13,205,769.80

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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.