Home / 1,287,594,281.40-1,776,923,027.64-723,178,625.69

Finding the Fourth Proportional to 1,287,594,281.40, 1,776,923,027.64 and 723,178,625.69

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Solution

The fourth proportional to 1,287,594,281.40, 1,776,923,027.64 and 723,178,625.69 is: 998,010,609.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,594,281.40 : 1,776,923,027.64 = 723,178,625.69 : x
  2. Step 2: Convert to fraction form
    1,287,594,281.40/1,776,923,027.64 = 723,178,625.69/x
  3. Step 3: Cross multiply
    1,287,594,281.40x = 1,776,923,027.64 × 723,178,625.69
  4. Step 4: Simplify right side
    1,287,594,281.40x = 1,285,032,753,076,724,480
  5. Step 5: Solve for x
    x = 1,285,032,753,076,724,480/1,287,594,281.40
  6. Step 6: Final answer
    x = 998,010,609.12

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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.