Home / 90,907,903.45-136,361,856.98-21,820,707

Finding the Fourth Proportional to 90,907,903.45, 136,361,856.98 and 21,820,707

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Solution

The fourth proportional to 90,907,903.45, 136,361,856.98 and 21,820,707 is: 32,731,060.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,907,903.45 : 136,361,856.98 = 21,820,707 : x
  2. Step 2: Convert to fraction form
    90,907,903.45/136,361,856.98 = 21,820,707/x
  3. Step 3: Cross multiply
    90,907,903.45x = 136,361,856.98 × 21,820,707
  4. Step 4: Simplify right side
    90,907,903.45x = 2,975,512,127,191,036.50
  5. Step 5: Solve for x
    x = 2,975,512,127,191,036.50/90,907,903.45
  6. Step 6: Final answer
    x = 32,731,060.93

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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.