Home / 66,818,940.08-100,230,483.72-31,796,380.40

Finding the Fourth Proportional to 66,818,940.08, 100,230,483.72 and 31,796,380.40

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Solution

The fourth proportional to 66,818,940.08, 100,230,483.72 and 31,796,380.40 is: 47,695,557.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,818,940.08 : 100,230,483.72 = 31,796,380.40 : x
  2. Step 2: Convert to fraction form
    66,818,940.08/100,230,483.72 = 31,796,380.40/x
  3. Step 3: Cross multiply
    66,818,940.08x = 100,230,483.72 × 31,796,380.40
  4. Step 4: Simplify right side
    66,818,940.08x = 3,186,966,588,037,127
  5. Step 5: Solve for x
    x = 3,186,966,588,037,127/66,818,940.08
  6. Step 6: Final answer
    x = 47,695,557.34

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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.