Home / 140,153,628.20-210,230,442.30-82,758,000.20

Finding the Fourth Proportional to 140,153,628.20, 210,230,442.30 and 82,758,000.20

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Solution

The fourth proportional to 140,153,628.20, 210,230,442.30 and 82,758,000.20 is: 124,137,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,153,628.20 : 210,230,442.30 = 82,758,000.20 : x
  2. Step 2: Convert to fraction form
    140,153,628.20/210,230,442.30 = 82,758,000.20/x
  3. Step 3: Cross multiply
    140,153,628.20x = 210,230,442.30 × 82,758,000.20
  4. Step 4: Simplify right side
    140,153,628.20x = 17,398,250,985,909,490
  5. Step 5: Solve for x
    x = 17,398,250,985,909,490/140,153,628.20
  6. Step 6: Final answer
    x = 124,137,000.30

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1.5x scale

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.