Home / 18,872,628.48-28,308,895.05-5,225,729.31

Finding the Fourth Proportional to 18,872,628.48, 28,308,895.05 and 5,225,729.31

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Solution

The fourth proportional to 18,872,628.48, 28,308,895.05 and 5,225,729.31 is: 7,838,580.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,872,628.48 : 28,308,895.05 = 5,225,729.31 : x
  2. Step 2: Convert to fraction form
    18,872,628.48/28,308,895.05 = 5,225,729.31/x
  3. Step 3: Cross multiply
    18,872,628.48x = 28,308,895.05 × 5,225,729.31
  4. Step 4: Simplify right side
    18,872,628.48x = 147,934,622,596,498.91
  5. Step 5: Solve for x
    x = 147,934,622,596,498.91/18,872,628.48
  6. Step 6: Final answer
    x = 7,838,580.77

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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.