Home / 112,172,406.30-168,258,609.45-70,119,020.70

Finding the Fourth Proportional to 112,172,406.30, 168,258,609.45 and 70,119,020.70

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Solution

The fourth proportional to 112,172,406.30, 168,258,609.45 and 70,119,020.70 is: 105,178,531.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,172,406.30 : 168,258,609.45 = 70,119,020.70 : x
  2. Step 2: Convert to fraction form
    112,172,406.30/168,258,609.45 = 70,119,020.70/x
  3. Step 3: Cross multiply
    112,172,406.30x = 168,258,609.45 × 70,119,020.70
  4. Step 4: Simplify right side
    112,172,406.30x = 11,798,128,918,977,766
  5. Step 5: Solve for x
    x = 11,798,128,918,977,766/112,172,406.30
  6. Step 6: Final answer
    x = 105,178,531.05

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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.