Home / 129,357,532.76-178,516,103.04-70,622,673.44

Finding the Fourth Proportional to 129,357,532.76, 178,516,103.04 and 70,622,673.44

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Solution

The fourth proportional to 129,357,532.76, 178,516,103.04 and 70,622,673.44 is: 97,460,767.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,357,532.76 : 178,516,103.04 = 70,622,673.44 : x
  2. Step 2: Convert to fraction form
    129,357,532.76/178,516,103.04 = 70,622,673.44/x
  3. Step 3: Cross multiply
    129,357,532.76x = 178,516,103.04 × 70,622,673.44
  4. Step 4: Simplify right side
    129,357,532.76x = 12,607,284,448,775,310
  5. Step 5: Solve for x
    x = 12,607,284,448,775,310/129,357,532.76
  6. Step 6: Final answer
    x = 97,460,767.69

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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.