Home / 1,186,752,911.20-1,780,129,366.80-606,277,621.60

Finding the Fourth Proportional to 1,186,752,911.20, 1,780,129,366.80 and 606,277,621.60

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Solution

The fourth proportional to 1,186,752,911.20, 1,780,129,366.80 and 606,277,621.60 is: 909,416,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,752,911.20 : 1,780,129,366.80 = 606,277,621.60 : x
  2. Step 2: Convert to fraction form
    1,186,752,911.20/1,780,129,366.80 = 606,277,621.60/x
  3. Step 3: Cross multiply
    1,186,752,911.20x = 1,780,129,366.80 × 606,277,621.60
  4. Step 4: Simplify right side
    1,186,752,911.20x = 1,079,252,598,643,817,984
  5. Step 5: Solve for x
    x = 1,079,252,598,643,817,984/1,186,752,911.20
  6. Step 6: Final answer
    x = 909,416,432.40

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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.