Home / 28,470,157.56-39,288,838.14-15,417,430.56

Finding the Fourth Proportional to 28,470,157.56, 39,288,838.14 and 15,417,430.56

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Solution

The fourth proportional to 28,470,157.56, 39,288,838.14 and 15,417,430.56 is: 21,276,065.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,470,157.56 : 39,288,838.14 = 15,417,430.56 : x
  2. Step 2: Convert to fraction form
    28,470,157.56/39,288,838.14 = 15,417,430.56/x
  3. Step 3: Cross multiply
    28,470,157.56x = 39,288,838.14 × 15,417,430.56
  4. Step 4: Simplify right side
    28,470,157.56x = 605,732,933,806,529.62
  5. Step 5: Solve for x
    x = 605,732,933,806,529.62/28,470,157.56
  6. Step 6: Final answer
    x = 21,276,065.39

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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.