Home / 402,436,900.80-603,655,351.20-143,776,036.80

Finding the Fourth Proportional to 402,436,900.80, 603,655,351.20 and 143,776,036.80

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Solution

The fourth proportional to 402,436,900.80, 603,655,351.20 and 143,776,036.80 is: 215,664,055.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,436,900.80 : 603,655,351.20 = 143,776,036.80 : x
  2. Step 2: Convert to fraction form
    402,436,900.80/603,655,351.20 = 143,776,036.80/x
  3. Step 3: Cross multiply
    402,436,900.80x = 603,655,351.20 × 143,776,036.80
  4. Step 4: Simplify right side
    402,436,900.80x = 86,791,173,988,648,144
  5. Step 5: Solve for x
    x = 86,791,173,988,648,144/402,436,900.80
  6. Step 6: Final answer
    x = 215,664,055.20

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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.