Home / 786,807,067.63-1,086,283,772.53-500,859,935.64

Finding the Fourth Proportional to 786,807,067.63, 1,086,283,772.53 and 500,859,935.64

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Solution

The fourth proportional to 786,807,067.63, 1,086,283,772.53 and 500,859,935.64 is: 691,498,644.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,807,067.63 : 1,086,283,772.53 = 500,859,935.64 : x
  2. Step 2: Convert to fraction form
    786,807,067.63/1,086,283,772.53 = 500,859,935.64/x
  3. Step 3: Cross multiply
    786,807,067.63x = 1,086,283,772.53 × 500,859,935.64
  4. Step 4: Simplify right side
    786,807,067.63x = 544,076,020,393,249,920
  5. Step 5: Solve for x
    x = 544,076,020,393,249,920/786,807,067.63
  6. Step 6: Final answer
    x = 691,498,644.05

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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.