Home / 89,849,793.90-134,774,690.85-86,322,600.30

Finding the Fourth Proportional to 89,849,793.90, 134,774,690.85 and 86,322,600.30

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Solution

The fourth proportional to 89,849,793.90, 134,774,690.85 and 86,322,600.30 is: 129,483,900.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,849,793.90 : 134,774,690.85 = 86,322,600.30 : x
  2. Step 2: Convert to fraction form
    89,849,793.90/134,774,690.85 = 86,322,600.30/x
  3. Step 3: Cross multiply
    89,849,793.90x = 134,774,690.85 × 86,322,600.30
  4. Step 4: Simplify right side
    89,849,793.90x = 11,634,101,768,800,616
  5. Step 5: Solve for x
    x = 11,634,101,768,800,616/89,849,793.90
  6. Step 6: Final answer
    x = 129,483,900.45

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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.