Home / 221,434,018.40-332,151,027.60-217,607,643.20

Finding the Fourth Proportional to 221,434,018.40, 332,151,027.60 and 217,607,643.20

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Solution

The fourth proportional to 221,434,018.40, 332,151,027.60 and 217,607,643.20 is: 326,411,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,434,018.40 : 332,151,027.60 = 217,607,643.20 : x
  2. Step 2: Convert to fraction form
    221,434,018.40/332,151,027.60 = 217,607,643.20/x
  3. Step 3: Cross multiply
    221,434,018.40x = 332,151,027.60 × 217,607,643.20
  4. Step 4: Simplify right side
    221,434,018.40x = 72,278,602,302,494,160
  5. Step 5: Solve for x
    x = 72,278,602,302,494,160/221,434,018.40
  6. Step 6: Final answer
    x = 326,411,464.80

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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.