Home / 89,087,792.40-133,525,400.40-79,947,007.20

Finding the Fourth Proportional to 89,087,792.40, 133,525,400.40 and 79,947,007.20

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Solution

The fourth proportional to 89,087,792.40, 133,525,400.40 and 79,947,007.20 is: 119,825,128.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,087,792.40 : 133,525,400.40 = 79,947,007.20 : x
  2. Step 2: Convert to fraction form
    89,087,792.40/133,525,400.40 = 79,947,007.20/x
  3. Step 3: Cross multiply
    89,087,792.40x = 133,525,400.40 × 79,947,007.20
  4. Step 4: Simplify right side
    89,087,792.40x = 10,674,956,147,161,684
  5. Step 5: Solve for x
    x = 10,674,956,147,161,684/89,087,792.40
  6. Step 6: Final answer
    x = 119,825,128.22

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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.