Home / 1,176,768,986.40-1,765,153,479.60-768,622,298.40

Finding the Fourth Proportional to 1,176,768,986.40, 1,765,153,479.60 and 768,622,298.40

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Solution

The fourth proportional to 1,176,768,986.40, 1,765,153,479.60 and 768,622,298.40 is: 1,152,933,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176,768,986.40 : 1,765,153,479.60 = 768,622,298.40 : x
  2. Step 2: Convert to fraction form
    1,176,768,986.40/1,765,153,479.60 = 768,622,298.40/x
  3. Step 3: Cross multiply
    1,176,768,986.40x = 1,765,153,479.60 × 768,622,298.40
  4. Step 4: Simplify right side
    1,176,768,986.40x = 1,356,736,324,518,909,440
  5. Step 5: Solve for x
    x = 1,356,736,324,518,909,440/1,176,768,986.40
  6. Step 6: Final answer
    x = 1,152,933,447.60

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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.