Home / 100,508,985.40-150,763,478.10-43,007,069.20

Finding the Fourth Proportional to 100,508,985.40, 150,763,478.10 and 43,007,069.20

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Solution

The fourth proportional to 100,508,985.40, 150,763,478.10 and 43,007,069.20 is: 64,510,603.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,508,985.40 : 150,763,478.10 = 43,007,069.20 : x
  2. Step 2: Convert to fraction form
    100,508,985.40/150,763,478.10 = 43,007,069.20/x
  3. Step 3: Cross multiply
    100,508,985.40x = 150,763,478.10 × 43,007,069.20
  4. Step 4: Simplify right side
    100,508,985.40x = 6,483,895,335,479,385
  5. Step 5: Solve for x
    x = 6,483,895,335,479,385/100,508,985.40
  6. Step 6: Final answer
    x = 64,510,603.80

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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.