Home / 129,219,779.52-178,323,854.07-70,483,706.42

Finding the Fourth Proportional to 129,219,779.52, 178,323,854.07 and 70,483,706.42

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Solution

The fourth proportional to 129,219,779.52, 178,323,854.07 and 70,483,706.42 is: 97,267,819.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,219,779.52 : 178,323,854.07 = 70,483,706.42 : x
  2. Step 2: Convert to fraction form
    129,219,779.52/178,323,854.07 = 70,483,706.42/x
  3. Step 3: Cross multiply
    129,219,779.52x = 178,323,854.07 × 70,483,706.42
  4. Step 4: Simplify right side
    129,219,779.52x = 12,568,926,177,325,498
  5. Step 5: Solve for x
    x = 12,568,926,177,325,498/129,219,779.52
  6. Step 6: Final answer
    x = 97,267,819.40

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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.