Home / 647,895,386.40-971,928,327.60-239,238,592.80

Finding the Fourth Proportional to 647,895,386.40, 971,928,327.60 and 239,238,592.80

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Solution

The fourth proportional to 647,895,386.40, 971,928,327.60 and 239,238,592.80 is: 358,889,367.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,895,386.40 : 971,928,327.60 = 239,238,592.80 : x
  2. Step 2: Convert to fraction form
    647,895,386.40/971,928,327.60 = 239,238,592.80/x
  3. Step 3: Cross multiply
    647,895,386.40x = 971,928,327.60 × 239,238,592.80
  4. Step 4: Simplify right side
    647,895,386.40x = 232,522,765,397,481,408
  5. Step 5: Solve for x
    x = 232,522,765,397,481,408/647,895,386.40
  6. Step 6: Final answer
    x = 358,889,367.45

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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.