Home / 105,709,205.40-158,516,568.90-40,991,501.40

Finding the Fourth Proportional to 105,709,205.40, 158,516,568.90 and 40,991,501.40

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Solution

The fourth proportional to 105,709,205.40, 158,516,568.90 and 40,991,501.40 is: 61,468,933.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,709,205.40 : 158,516,568.90 = 40,991,501.40 : x
  2. Step 2: Convert to fraction form
    105,709,205.40/158,516,568.90 = 40,991,501.40/x
  3. Step 3: Cross multiply
    105,709,205.40x = 158,516,568.90 × 40,991,501.40
  4. Step 4: Simplify right side
    105,709,205.40x = 6,497,832,155,987,546
  5. Step 5: Solve for x
    x = 6,497,832,155,987,546/105,709,205.40
  6. Step 6: Final answer
    x = 61,468,933.87

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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.