Home / 112,344,008.40-168,516,012.60-69,072,901.20

Finding the Fourth Proportional to 112,344,008.40, 168,516,012.60 and 69,072,901.20

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Solution

The fourth proportional to 112,344,008.40, 168,516,012.60 and 69,072,901.20 is: 103,609,351.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,344,008.40 : 168,516,012.60 = 69,072,901.20 : x
  2. Step 2: Convert to fraction form
    112,344,008.40/168,516,012.60 = 69,072,901.20/x
  3. Step 3: Cross multiply
    112,344,008.40x = 168,516,012.60 × 69,072,901.20
  4. Step 4: Simplify right side
    112,344,008.40x = 11,639,889,888,937,756
  5. Step 5: Solve for x
    x = 11,639,889,888,937,756/112,344,008.40
  6. Step 6: Final answer
    x = 103,609,351.80

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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.