Home / 99,651,215.20-149,364,848.40-51,110,312.80

Finding the Fourth Proportional to 99,651,215.20, 149,364,848.40 and 51,110,312.80

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Solution

The fourth proportional to 99,651,215.20, 149,364,848.40 and 51,110,312.80 is: 76,608,038.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,651,215.20 : 149,364,848.40 = 51,110,312.80 : x
  2. Step 2: Convert to fraction form
    99,651,215.20/149,364,848.40 = 51,110,312.80/x
  3. Step 3: Cross multiply
    99,651,215.20x = 149,364,848.40 × 51,110,312.80
  4. Step 4: Simplify right side
    99,651,215.20x = 7,634,084,123,048,579
  5. Step 5: Solve for x
    x = 7,634,084,123,048,579/99,651,215.20
  6. Step 6: Final answer
    x = 76,608,038.42

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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.