Home / 28,502,362.81-39,332,206.53-15,449,341.47

Finding the Fourth Proportional to 28,502,362.81, 39,332,206.53 and 15,449,341.47

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Solution

The fourth proportional to 28,502,362.81, 39,332,206.53 and 15,449,341.47 is: 21,319,519.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502,362.81 : 39,332,206.53 = 15,449,341.47 : x
  2. Step 2: Convert to fraction form
    28,502,362.81/39,332,206.53 = 15,449,341.47/x
  3. Step 3: Cross multiply
    28,502,362.81x = 39,332,206.53 × 15,449,341.47
  4. Step 4: Simplify right side
    28,502,362.81x = 607,656,689,450,533.88
  5. Step 5: Solve for x
    x = 607,656,689,450,533.88/28,502,362.81
  6. Step 6: Final answer
    x = 21,319,519.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.