Home / 140,219,951.40-210,329,927.10-79,753,775.40

Finding the Fourth Proportional to 140,219,951.40, 210,329,927.10 and 79,753,775.40

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Solution

The fourth proportional to 140,219,951.40, 210,329,927.10 and 79,753,775.40 is: 119,630,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,219,951.40 : 210,329,927.10 = 79,753,775.40 : x
  2. Step 2: Convert to fraction form
    140,219,951.40/210,329,927.10 = 79,753,775.40/x
  3. Step 3: Cross multiply
    140,219,951.40x = 210,329,927.10 × 79,753,775.40
  4. Step 4: Simplify right side
    140,219,951.40x = 16,774,605,765,831,774
  5. Step 5: Solve for x
    x = 16,774,605,765,831,774/140,219,951.40
  6. Step 6: Final answer
    x = 119,630,663.10

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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.