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Finding the Fourth Proportional to 1,303,203,893.88, 1,798,456,848.82 and 708,528,391.40

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Solution

The fourth proportional to 1,303,203,893.88, 1,798,456,848.82 and 708,528,391.40 is: 977,788,467.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303,203,893.88 : 1,798,456,848.82 = 708,528,391.40 : x
  2. Step 2: Convert to fraction form
    1,303,203,893.88/1,798,456,848.82 = 708,528,391.40/x
  3. Step 3: Cross multiply
    1,303,203,893.88x = 1,798,456,848.82 × 708,528,391.40
  4. Step 4: Simplify right side
    1,303,203,893.88x = 1,274,257,738,096,747,520
  5. Step 5: Solve for x
    x = 1,274,257,738,096,747,520/1,303,203,893.88
  6. Step 6: Final answer
    x = 977,788,467.39

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1.5x scale

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.