Home / 153,202,990.95-211,485,363.10-102,996,327.57

Finding the Fourth Proportional to 153,202,990.95, 211,485,363.10 and 102,996,327.57

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Solution

The fourth proportional to 153,202,990.95, 211,485,363.10 and 102,996,327.57 is: 142,178,789.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,202,990.95 : 211,485,363.10 = 102,996,327.57 : x
  2. Step 2: Convert to fraction form
    153,202,990.95/211,485,363.10 = 102,996,327.57/x
  3. Step 3: Cross multiply
    153,202,990.95x = 211,485,363.10 × 102,996,327.57
  4. Step 4: Simplify right side
    153,202,990.95x = 21,782,215,734,107,988
  5. Step 5: Solve for x
    x = 21,782,215,734,107,988/153,202,990.95
  6. Step 6: Final answer
    x = 142,178,789.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.