Home / 154,686,106.60-213,462,567.26-85,071,512.76

Finding the Fourth Proportional to 154,686,106.60, 213,462,567.26 and 85,071,512.76

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Solution

The fourth proportional to 154,686,106.60, 213,462,567.26 and 85,071,512.76 is: 117,396,344.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,686,106.60 : 213,462,567.26 = 85,071,512.76 : x
  2. Step 2: Convert to fraction form
    154,686,106.60/213,462,567.26 = 85,071,512.76/x
  3. Step 3: Cross multiply
    154,686,106.60x = 213,462,567.26 × 85,071,512.76
  4. Step 4: Simplify right side
    154,686,106.60x = 18,159,583,514,441,448
  5. Step 5: Solve for x
    x = 18,159,583,514,441,448/154,686,106.60
  6. Step 6: Final answer
    x = 117,396,344.85

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1.5x scale

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.