Home / 140,864,830.80-211,297,246.20-86,445,272.40

Finding the Fourth Proportional to 140,864,830.80, 211,297,246.20 and 86,445,272.40

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Solution

The fourth proportional to 140,864,830.80, 211,297,246.20 and 86,445,272.40 is: 129,667,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,864,830.80 : 211,297,246.20 = 86,445,272.40 : x
  2. Step 2: Convert to fraction form
    140,864,830.80/211,297,246.20 = 86,445,272.40/x
  3. Step 3: Cross multiply
    140,864,830.80x = 211,297,246.20 × 86,445,272.40
  4. Step 4: Simplify right side
    140,864,830.80x = 18,265,648,005,128,864
  5. Step 5: Solve for x
    x = 18,265,648,005,128,864/140,864,830.80
  6. Step 6: Final answer
    x = 129,667,908.60

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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.