Home / 423,877,347.40-584,956,011.78-256,611,388.36

Finding the Fourth Proportional to 423,877,347.40, 584,956,011.78 and 256,611,388.36

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Solution

The fourth proportional to 423,877,347.40, 584,956,011.78 and 256,611,388.36 is: 354,126,907.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,877,347.40 : 584,956,011.78 = 256,611,388.36 : x
  2. Step 2: Convert to fraction form
    423,877,347.40/584,956,011.78 = 256,611,388.36/x
  3. Step 3: Cross multiply
    423,877,347.40x = 584,956,011.78 × 256,611,388.36
  4. Step 4: Simplify right side
    423,877,347.40x = 150,106,374,312,394,304
  5. Step 5: Solve for x
    x = 150,106,374,312,394,304/423,877,347.40
  6. Step 6: Final answer
    x = 354,126,907.78

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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.