Home / 55,331,340.80-83,011,526.40-21,253,798.40

Finding the Fourth Proportional to 55,331,340.80, 83,011,526.40 and 21,253,798.40

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Solution

The fourth proportional to 55,331,340.80, 83,011,526.40 and 21,253,798.40 is: 31,886,273.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,331,340.80 : 83,011,526.40 = 21,253,798.40 : x
  2. Step 2: Convert to fraction form
    55,331,340.80/83,011,526.40 = 21,253,798.40/x
  3. Step 3: Cross multiply
    55,331,340.80x = 83,011,526.40 × 21,253,798.40
  4. Step 4: Simplify right side
    55,331,340.80x = 1,764,310,246,981,877.75
  5. Step 5: Solve for x
    x = 1,764,310,246,981,877.75/55,331,340.80
  6. Step 6: Final answer
    x = 31,886,273.16

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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.