Home / 647,754,787.20-971,856,129.60-625,359,907.20

Finding the Fourth Proportional to 647,754,787.20, 971,856,129.60 and 625,359,907.20

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Solution

The fourth proportional to 647,754,787.20, 971,856,129.60 and 625,359,907.20 is: 938,256,067.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,754,787.20 : 971,856,129.60 = 625,359,907.20 : x
  2. Step 2: Convert to fraction form
    647,754,787.20/971,856,129.60 = 625,359,907.20/x
  3. Step 3: Cross multiply
    647,754,787.20x = 971,856,129.60 × 625,359,907.20
  4. Step 4: Simplify right side
    647,754,787.20x = 607,759,859,018,407,296
  5. Step 5: Solve for x
    x = 607,759,859,018,407,296/647,754,787.20
  6. Step 6: Final answer
    x = 938,256,067.00

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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.