Home / 281,248,007.60-421,872,011.40-279,456,417.20

Finding the Fourth Proportional to 281,248,007.60, 421,872,011.40 and 279,456,417.20

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Solution

The fourth proportional to 281,248,007.60, 421,872,011.40 and 279,456,417.20 is: 419,184,625.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,248,007.60 : 421,872,011.40 = 279,456,417.20 : x
  2. Step 2: Convert to fraction form
    281,248,007.60/421,872,011.40 = 279,456,417.20/x
  3. Step 3: Cross multiply
    281,248,007.60x = 421,872,011.40 × 279,456,417.20
  4. Step 4: Simplify right side
    281,248,007.60x = 117,894,840,822,801,552
  5. Step 5: Solve for x
    x = 117,894,840,822,801,552/281,248,007.60
  6. Step 6: Final answer
    x = 419,184,625.80

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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.